674136239364 has 243 divisors, whose sum is σ = 2011606514463. Its totient is φ = 189802335744.

The previous prime is 674136239333. The next prime is 674136239377. The reversal of 674136239364 is 463932631476.

It is a happy number.

The square root of 674136239364 is 821058.

It is a perfect power (a square), and thus also a powerful number.

674136239364 is a `hidden beast` number, since 6 + 7 + 4 + 1 + 3 + 623 + 9 + 3 + 6 + 4 = 666.

674136239364 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 4 ways, for example, as 19784672964 + 654351566400 = 140658^2 + 808920^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 674136239364.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3896741182 + ... + 3896741354.

Almost surely, 2^674136239364 is an apocalyptic number.

674136239364 is the 821058-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674136239364

674136239364 is an abundant number, since it is smaller than the sum of its proper divisors (1337470275099).

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

674136239364 is a wasteful number, since it uses less digits than its factorization.

674136239364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 298 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 54.

The spelling of 674136239364 in words is "six hundred seventy-four billion, one hundred thirty-six million, two hundred thirty-nine thousand, three hundred sixty-four".