674431764555 has 16 divisors (see below), whose sum is σ = 1091215441440. Its totient is φ = 355655401728.

The previous prime is 674431764541. The next prime is 674431764637. The reversal of 674431764555 is 555467134476.

It is not a de Polignac number, because 674431764555 - 2⁶ = 674431764491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674431764495 and 674431764504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252594832 + ... + 252597501.

It is an arithmetic number, because the mean of its divisors is an integer number (68200965090).

Almost surely, 2^674431764555 is an apocalyptic number.

674431764555 is a deficient number, since it is larger than the sum of its proper divisors (416783676885).

674431764555 is a wasteful number, since it uses less digits than its factorization.

674431764555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505192430.

The product of its digits is 42336000, while the sum is 57.

The spelling of 674431764555 in words is "six hundred seventy-four billion, four hundred thirty-one million, seven hundred sixty-four thousand, five hundred fifty-five".