674155254018 has 32 divisors (see below), whose sum is σ = 1397935779840. Its totient is φ = 216511408080.

The previous prime is 674155254011. The next prime is 674155254029. The reversal of 674155254018 is 810452551476.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (674155254011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7941238 + ... + 8025681.

It is an arithmetic number, because the mean of its divisors is an integer number (43685493120).

Almost surely, 2^674155254018 is an apocalyptic number.

674155254018 is an abundant number, since it is smaller than the sum of its proper divisors (723780525822).

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

674155254018 is a wasteful number, since it uses less digits than its factorization.

674155254018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967182.

The product of its (nonzero) digits is 1344000, while the sum is 48.

The spelling of 674155254018 in words is "six hundred seventy-four billion, one hundred fifty-five million, two hundred fifty-four thousand, eighteen".