677990235951 has 48 divisors (see below), whose sum is σ = 1195712544000. Its totient is φ = 361554171264.

The previous prime is 677990235907. The next prime is 677990235997. The reversal of 677990235951 is 159532099776.

It is not a de Polignac number, because 677990235951 - 2⁶ = 677990235887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677990235551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4146726 + ... + 4307123.

It is an arithmetic number, because the mean of its divisors is an integer number (24910678000).

Almost surely, 2^677990235951 is an apocalyptic number.

677990235951 is a deficient number, since it is larger than the sum of its proper divisors (517722308049).

677990235951 is a wasteful number, since it uses less digits than its factorization.

677990235951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453948 (or 8453945 counting only the distinct ones).

The product of its (nonzero) digits is 32148900, while the sum is 63.

The spelling of 677990235951 in words is "six hundred seventy-seven billion, nine hundred ninety million, two hundred thirty-five thousand, nine hundred fifty-one".