312856774772 has 6 divisors (see below), whose sum is σ = 547499355858. Its totient is φ = 156428387384.

The previous prime is 312856774733. The next prime is 312856774799. The reversal of 312856774772 is 277477658213.

It can be written as a sum of positive squares in only one way, i.e., 284818611856 + 28038162916 = 533684^2 + 167446^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39107096843 + ... + 39107096850.

It is an arithmetic number, because the mean of its divisors is an integer number (91249892643).

Almost surely, 2^312856774772 is an apocalyptic number.

It is an amenable number.

312856774772 is a deficient number, since it is larger than the sum of its proper divisors (234642581086).

312856774772 is a wasteful number, since it uses less digits than its factorization.

312856774772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78214193697 (or 78214193695 counting only the distinct ones).

The product of its digits is 27659520, while the sum is 59.

The spelling of 312856774772 in words is "three hundred twelve billion, eight hundred fifty-six million, seven hundred seventy-four thousand, seven hundred seventy-two".