318643913740 has 24 divisors (see below), whose sum is σ = 670340790000. Its totient is φ = 127231171008.

The previous prime is 318643913729. The next prime is 318643913743. The reversal of 318643913740 is 47319346813.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (318643913743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14138115 + ... + 14160634.

It is an arithmetic number, because the mean of its divisors is an integer number (27930866250).

Almost surely, 2^318643913740 is an apocalyptic number.

It is an amenable number.

318643913740 is an abundant number, since it is smaller than the sum of its proper divisors (351696876260).

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

318643913740 is a wasteful number, since it uses less digits than its factorization.

318643913740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28299321 (or 28299319 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The spelling of 318643913740 in words is "three hundred eighteen billion, six hundred forty-three million, nine hundred thirteen thousand, seven hundred forty".