312078481634 has 4 divisors (see below), whose sum is σ = 468117722454. Its totient is φ = 156039240816.

The previous prime is 312078481591. The next prime is 312078481717. The reversal of 312078481634 is 436184870213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 184448775625 + 127629706009 = 429475^2 + 357253^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78019620407 + ... + 78019620410.

Almost surely, 2^312078481634 is an apocalyptic number.

312078481634 is a deficient number, since it is larger than the sum of its proper divisors (156039240820).

312078481634 is a wasteful number, since it uses less digits than its factorization.

312078481634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156039240819.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 312078481634 in words is "three hundred twelve billion, seventy-eight million, four hundred eighty-one thousand, six hundred thirty-four".