674055426654 has 40 divisors (see below), whose sum is σ = 1538881276680. Its totient is φ = 220445797104.

The previous prime is 674055426647. The next prime is 674055426659. The reversal of 674055426654 is 456624550476.

674055426654 is a `hidden beast` number, since 6 + 7 + 4 + 0 + 554 + 26 + 65 + 4 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 674055426654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674055426659) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39244584 + ... + 39261755.

It is an arithmetic number, because the mean of its divisors is an integer number (38472031917).

Almost surely, 2^674055426654 is an apocalyptic number.

674055426654 is an abundant number, since it is smaller than the sum of its proper divisors (864825850026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674055426654 is a wasteful number, since it uses less digits than its factorization.

674055426654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78506406 (or 78506397 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 54.

The spelling of 674055426654 in words is "six hundred seventy-four billion, fifty-five million, four hundred twenty-six thousand, six hundred fifty-four".