157829869956 has 96 divisors (see below), whose sum is σ = 411696907776. Its totient is φ = 46646208000.

The previous prime is 157829869871. The next prime is 157829870021. The reversal of 157829869956 is 659968928751.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3901996 + ... + 3942236.

It is an arithmetic number, because the mean of its divisors is an integer number (4288509456).

Almost surely, 2^157829869956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157829869956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205848453888).

157829869956 is an abundant number, since it is smaller than the sum of its proper divisors (253867037820).

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

157829869956 is a wasteful number, since it uses less digits than its factorization.

157829869956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40993 (or 40991 counting only the distinct ones).

The product of its digits is 587865600, while the sum is 75.

The spelling of 157829869956 in words is "one hundred fifty-seven billion, eight hundred twenty-nine million, eight hundred sixty-nine thousand, nine hundred fifty-six".