156938422719 has 16 divisors (see below), whose sum is σ = 230142108672. Its totient is φ = 94522649568.

The previous prime is 156938422703. The next prime is 156938422747. The reversal of 156938422719 is 917224839651.

It is not a de Polignac number, because 156938422719 - 2⁴ = 156938422703 is a prime.

It is a super-2 number, since 2×156938422719² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156938422789) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 42807339 + ... + 42811004.

It is an arithmetic number, because the mean of its divisors is an integer number (14383881792).

Almost surely, 2^156938422719 is an apocalyptic number.

156938422719 is a deficient number, since it is larger than the sum of its proper divisors (73203685953).

156938422719 is a wasteful number, since it uses less digits than its factorization.

156938422719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85618406.

The product of its digits is 6531840, while the sum is 57.

The spelling of 156938422719 in words is "one hundred fifty-six billion, nine hundred thirty-eight million, four hundred twenty-two thousand, seven hundred nineteen".