674908657670 has 32 divisors (see below), whose sum is σ = 1308522575808. Its totient is φ = 249151690368.

The previous prime is 674908657639. The next prime is 674908657723. The reversal of 674908657670 is 76756809476.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a junction number, because it is equal to n+sod(n) for n = 674908657597 and 674908657606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248852 + ... + 1188168.

It is an arithmetic number, because the mean of its divisors is an integer number (40891330494).

Almost surely, 2^674908657670 is an apocalyptic number.

674908657670 is a deficient number, since it is larger than the sum of its proper divisors (633613918138).

674908657670 is a wasteful number, since it uses less digits than its factorization.

674908657670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944864.

The product of its (nonzero) digits is 106686720, while the sum is 65.

The spelling of 674908657670 in words is "six hundred seventy-four billion, nine hundred eight million, six hundred fifty-seven thousand, six hundred seventy".