156902679923349 has 4 divisors (see below), whose sum is σ = 209203573231136. Its totient is φ = 104601786615564.

The previous prime is 156902679923347. The next prime is 156902679923387. The reversal of 156902679923349 is 943329976209651.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 156902679923349 - 2¹ = 156902679923347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156902679923347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26150446653889 + ... + 26150446653894.

It is an arithmetic number, because the mean of its divisors is an integer number (52300893307784).

Almost surely, 2^{156902679923349} is an apocalyptic number.

It is an amenable number.

156902679923349 is a deficient number, since it is larger than the sum of its proper divisors (52300893307787).

156902679923349 is an equidigital number, since it uses as much as digits as its factorization.

156902679923349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52300893307786.

The product of its (nonzero) digits is 1190427840, while the sum is 75.

The spelling of 156902679923349 in words is "one hundred fifty-six trillion, nine hundred two billion, six hundred seventy-nine million, nine hundred twenty-three thousand, three hundred forty-nine".