12510238770 has 48 divisors (see below), whose sum is σ = 32695197912. Its totient is φ = 3318773760.

The previous prime is 12510238751. The next prime is 12510238781. The reversal of 12510238770 is 7783201521.

It can be written as a sum of positive squares in 4 ways, for example, as 9578341161 + 2931897609 = 97869^2 + 54147^2 .

It is a super-2 number, since 2×12510238770² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 342741 + ... + 377480.

Almost surely, 2^12510238770 is an apocalyptic number.

12510238770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12510238770 is an abundant number, since it is smaller than the sum of its proper divisors (20184959142).

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

12510238770 is a wasteful number, since it uses less digits than its factorization.

12510238770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720427 (or 720424 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 12510238770 in words is "twelve billion, five hundred ten million, two hundred thirty-eight thousand, seven hundred seventy".