77036631477 has 16 divisors (see below), whose sum is σ = 113606344320. Its totient is φ = 46125882432.

The previous prime is 77036631461. The next prime is 77036631479. The reversal of 77036631477 is 77413663077.

It is not a de Polignac number, because 77036631477 - 2⁴ = 77036631461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77036631479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26691777 + ... + 26694662.

It is an arithmetic number, because the mean of its divisors is an integer number (7100396520).

Almost surely, 2^77036631477 is an apocalyptic number.

It is an amenable number.

77036631477 is a deficient number, since it is larger than the sum of its proper divisors (36569712843).

77036631477 is a wasteful number, since it uses less digits than its factorization.

77036631477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53386492.

The product of its (nonzero) digits is 3111696, while the sum is 51.

The spelling of 77036631477 in words is "seventy-seven billion, thirty-six million, six hundred thirty-one thousand, four hundred seventy-seven".