312778359036 has 288 divisors, whose sum is σ = 969448065600. Its totient is φ = 86619456000.

The previous prime is 312778359007. The next prime is 312778359037. The reversal of 312778359036 is 630953877213.

312778359036 is a `hidden beast` number, since 3 + 12 + 7 + 7 + 8 + 3 + 590 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312778359037) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17149170 + ... + 17167398.

Almost surely, 2^312778359036 is an apocalyptic number.

312778359036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312778359036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484724032800).

312778359036 is an abundant number, since it is smaller than the sum of its proper divisors (656669706564).

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

312778359036 is a wasteful number, since it uses less digits than its factorization.

312778359036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18378 (or 18359 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 312778359036 in words is "three hundred twelve billion, seven hundred seventy-eight million, three hundred fifty-nine thousand, thirty-six".