157821939022 has 32 divisors (see below), whose sum is σ = 263848228704. Its totient is φ = 70195507200.

The previous prime is 157821938927. The next prime is 157821939029. The reversal of 157821939022 is 220939128751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157821939029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45663 + ... + 563674.

It is an arithmetic number, because the mean of its divisors is an integer number (8245257147).

Almost surely, 2^157821939022 is an apocalyptic number.

157821939022 is a deficient number, since it is larger than the sum of its proper divisors (106026289682).

157821939022 is a wasteful number, since it uses less digits than its factorization.

157821939022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609604.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 157821939022 in words is "one hundred fifty-seven billion, eight hundred twenty-one million, nine hundred thirty-nine thousand, twenty-two".