156873229434 has 48 divisors (see below), whose sum is σ = 350130924000. Its totient is φ = 50732182368.

The previous prime is 156873229423. The next prime is 156873229463. The reversal of 156873229434 is 434922378651.

156873229434 is a `hidden beast` number, since 1 + 568 + 7 + 32 + 2 + 9 + 43 + 4 = 666.

It is a super-2 number, since 2×156873229434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564804 + ... + 795455.

It is an arithmetic number, because the mean of its divisors is an integer number (7294394250).

Almost surely, 2^156873229434 is an apocalyptic number.

156873229434 is an abundant number, since it is smaller than the sum of its proper divisors (193257694566).

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

156873229434 is a wasteful number, since it uses less digits than its factorization.

156873229434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360459 (or 1360456 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 156873229434 in words is "one hundred fifty-six billion, eight hundred seventy-three million, two hundred twenty-nine thousand, four hundred thirty-four".