670772873654 has 64 divisors (see below), whose sum is σ = 1185414289920. Its totient is φ = 281712936960.

The previous prime is 670772873599. The next prime is 670772873677. The reversal of 670772873654 is 456378277076.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14953892 + ... + 14998680.

It is an arithmetic number, because the mean of its divisors is an integer number (18522098280).

Almost surely, 2^670772873654 is an apocalyptic number.

670772873654 is a deficient number, since it is larger than the sum of its proper divisors (514641416266).

670772873654 is a wasteful number, since it uses less digits than its factorization.

670772873654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45945.

The product of its (nonzero) digits is 82978560, while the sum is 62.

The spelling of 670772873654 in words is "six hundred seventy billion, seven hundred seventy-two million, eight hundred seventy-three thousand, six hundred fifty-four".