674919827138 has 6 divisors (see below), whose sum is σ = 1012381483449. Its totient is φ = 337459332656.

The previous prime is 674919827089. The next prime is 674919827147. The reversal of 674919827138 is 831728919476.

It can be written as a sum of positive squares in 2 ways, for example, as 642958611409 + 31961215729 = 801847^2 + 178777^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=580913.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 871370 + ... + 1452282.

Almost surely, 2^674919827138 is an apocalyptic number.

674919827138 is a deficient number, since it is larger than the sum of its proper divisors (337461656311).

674919827138 is an frugal number, since it uses more digits than its factorization.

674919827138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161828 (or 580915 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 65.

The spelling of 674919827138 in words is "six hundred seventy-four billion, nine hundred nineteen million, eight hundred twenty-seven thousand, one hundred thirty-eight".