677954612961 has 12 divisors (see below), whose sum is σ = 991066182288. Its totient is φ = 446524322904.

The previous prime is 677954612911. The next prime is 677954612969. The reversal of 677954612961 is 169216459776.

677954612961 is a `hidden beast` number, since 6 + 7 + 7 + 9 + 5 + 4 + 612 + 9 + 6 + 1 = 666.

It is not a de Polignac number, because 677954612961 - 2¹⁴ = 677954596577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (677954612969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453784135 + ... + 453785628.

It is an arithmetic number, because the mean of its divisors is an integer number (82588848524).

Almost surely, 2^677954612961 is an apocalyptic number.

It is an amenable number.

677954612961 is a deficient number, since it is larger than the sum of its proper divisors (313111569327).

677954612961 is a wasteful number, since it uses less digits than its factorization.

677954612961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907569852 (or 907569849 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 677954612961 in words is "six hundred seventy-seven billion, nine hundred fifty-four million, six hundred twelve thousand, nine hundred sixty-one".