15750135198736 has 135 divisors (see below), whose sum is σ = 32668778870973. Its totient is φ = 7355008552320.

The previous prime is 15750135198619. The next prime is 15750135198739. The reversal of 15750135198736 is 63789153105751.

The square root of 15750135198736 is 3968644.

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

It can be written as a sum of positive squares in only one way, i.e., 12505813758736 + 3244321440000 = 3536356^2 + 1801200^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15750135198739) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 23827738246 + ... + 23827738906.

Almost surely, 2^{15750135198736} is an apocalyptic number.

15750135198736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

15750135198736 is the 3968644-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15750135198736

15750135198736 is an abundant number, since it is smaller than the sum of its proper divisors (16918643672237).

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

15750135198736 is an frugal number, since it uses more digits than its factorization.

15750135198736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 23814000, while the sum is 61.

The spelling of 15750135198736 in words is "fifteen trillion, seven hundred fifty billion, one hundred thirty-five million, one hundred ninety-eight thousand, seven hundred thirty-six".