157251738842 has 16 divisors (see below), whose sum is σ = 258098444064. Its totient is φ = 71262114000.

The previous prime is 157251738841. The next prime is 157251738881. The reversal of 157251738842 is 248837152751.

It is not an unprimeable number, because it can be changed into a prime (157251738841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10790009 + ... + 10804572.

It is an arithmetic number, because the mean of its divisors is an integer number (16131152754).

Almost surely, 2^157251738842 is an apocalyptic number.

157251738842 is a deficient number, since it is larger than the sum of its proper divisors (100846705222).

157251738842 is a wasteful number, since it uses less digits than its factorization.

157251738842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21594925.

The product of its digits is 3763200, while the sum is 53.

The spelling of 157251738842 in words is "one hundred fifty-seven billion, two hundred fifty-one million, seven hundred thirty-eight thousand, eight hundred forty-two".