677453414777 has 6 divisors (see below), whose sum is σ = 714985460298. Its totient is φ = 641797971552.

The previous prime is 677453414767. The next prime is 677453414783. The reversal of 677453414777 is 777414354776.

It can be written as a sum of positive squares in only one way, i.e., 675085716496 + 2367698281 = 821636^2 + 48659^2 .

It is not a de Polignac number, because 677453414777 - 2²² = 677449220473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677453414707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 938300768 + ... + 938301489.

It is an arithmetic number, because the mean of its divisors is an integer number (119164243383).

Almost surely, 2^677453414777 is an apocalyptic number.

It is an amenable number.

677453414777 is a deficient number, since it is larger than the sum of its proper divisors (37532045521).

677453414777 is a wasteful number, since it uses less digits than its factorization.

677453414777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876602295 (or 1876602276 counting only the distinct ones).

The product of its digits is 96808320, while the sum is 62.

The spelling of 677453414777 in words is "six hundred seventy-seven billion, four hundred fifty-three million, four hundred fourteen thousand, seven hundred seventy-seven".