15729157950 has 48 divisors (see below), whose sum is σ = 42554526336. Its totient is φ = 3813128800.

The previous prime is 15729157933. The next prime is 15729157981. The reversal of 15729157950 is 5975192751.

It is a junction number, because it is equal to n+sod(n) for n = 15729157893 and 15729157902.

It is a congruent number.

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, 4764762 + ... + 4768061.

It is an arithmetic number, because the mean of its divisors is an integer number (886552632).

Almost surely, 2^15729157950 is an apocalyptic number.

15729157950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15729157950 is an abundant number, since it is smaller than the sum of its proper divisors (26825368386).

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

15729157950 is a wasteful number, since it uses less digits than its factorization.

15729157950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9532849 (or 9532844 counting only the distinct ones).

The product of its (nonzero) digits is 992250, while the sum is 51.

The spelling of 15729157950 in words is "fifteen billion, seven hundred twenty-nine million, one hundred fifty-seven thousand, nine hundred fifty".