157321851904 has 88 divisors (see below), whose sum is σ = 359717181120. Its totient is φ = 67367387136.

The previous prime is 157321851881. The next prime is 157321851923. The reversal of 157321851904 is 409158123751.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9231039 + ... + 9248065.

It is an arithmetic number, because the mean of its divisors is an integer number (4087695240).

Almost surely, 2^157321851904 is an apocalyptic number.

157321851904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157321851904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179858590560).

157321851904 is an abundant number, since it is smaller than the sum of its proper divisors (202395329216).

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

157321851904 is a wasteful number, since it uses less digits than its factorization.

157321851904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18343 (or 18325 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The spelling of 157321851904 in words is "one hundred fifty-seven billion, three hundred twenty-one million, eight hundred fifty-one thousand, nine hundred four".