312450172156 has 6 divisors (see below), whose sum is σ = 546787801280. Its totient is φ = 156225086076.

The previous prime is 312450172121. The next prime is 312450172193. The reversal of 312450172156 is 651271054213.

It is a super-2 number, since 2×312450172156² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 39056271516 + ... + 39056271523.

Almost surely, 2^312450172156 is an apocalyptic number.

It is an amenable number.

312450172156 is a deficient number, since it is larger than the sum of its proper divisors (234337629124).

312450172156 is a wasteful number, since it uses less digits than its factorization.

312450172156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78112543043 (or 78112543041 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 312450172156 in words is "three hundred twelve billion, four hundred fifty million, one hundred seventy-two thousand, one hundred fifty-six".