674769855888 has 150 divisors (see below), whose sum is σ = 2074619756946. Its totient is φ = 211692386304.

The previous prime is 674769855887. The next prime is 674769855923. The reversal of 674769855888 is 888558967476.

674769855888 is a `hidden beast` number, since 6 + 7 + 476 + 98 + 5 + 58 + 8 + 8 = 666.

674769855888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 196614201744 + 478155654144 = 443412^2 + 691488^2 .

It is a super-2 number, since 2×674769855888² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (674769855887) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 526245 + ... + 1275332.

Almost surely, 2^674769855888 is an apocalyptic number.

674769855888 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

674769855888 is an abundant number, since it is smaller than the sum of its proper divisors (1399849901058).

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

674769855888 is a wasteful number, since it uses less digits than its factorization.

674769855888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801631 (or 1801599 counting only the distinct ones).

The product of its digits is 6502809600, while the sum is 81.

The spelling of 674769855888 in words is "six hundred seventy-four billion, seven hundred sixty-nine million, eight hundred fifty-five thousand, eight hundred eighty-eight".