12757702500 has 225 divisors, whose sum is σ = 41842302271. Its totient is φ = 3388500000.

The previous prime is 12757702493. The next prime is 12757702511. The reversal of 12757702500 is 520775721.

The square root of 12757702500 is 112950.

It is a perfect power (a square), and thus also a powerful number.

12757702500 is a `hidden beast` number, since 12 + 75 + 7 + 70 + 2 + 500 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1000203876 + 11757498624 = 31626^2 + 108432^2 .

It is a tau number, because it is divible by the number of its divisors (225).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 50827375 + ... + 50827625.

Almost surely, 2^12757702500 is an apocalyptic number.

12757702500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12757702500 is the 112950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12757702500

12757702500 is an abundant number, since it is smaller than the sum of its proper divisors (29084599771).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12757702500 is an frugal number, since it uses more digits than its factorization.

12757702500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 36.

Multiplying 12757702500 by its sum of digits (36), we get a square (459277290000 = 677700²).

12757702500 divided by its sum of digits (36) gives a square (354380625 = 18825²).

The spelling of 12757702500 in words is "twelve billion, seven hundred fifty-seven million, seven hundred two thousand, five hundred".