157900243892 has 12 divisors (see below), whose sum is σ = 276752518560. Its totient is φ = 78828095736.

The previous prime is 157900243873. The next prime is 157900243909. The reversal of 157900243892 is 298342009751.

It is a self number, because there is not a number n which added to its sum of digits gives 157900243892.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30503642 + ... + 30508817.

It is an arithmetic number, because the mean of its divisors is an integer number (23062709880).

Almost surely, 2^157900243892 is an apocalyptic number.

It is an amenable number.

157900243892 is a deficient number, since it is larger than the sum of its proper divisors (118852274668).

157900243892 is a wasteful number, since it uses less digits than its factorization.

157900243892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61013110 (or 61013108 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 157900243892 in words is "one hundred fifty-seven billion, nine hundred million, two hundred forty-three thousand, eight hundred ninety-two".