318197772130 has 32 divisors (see below), whose sum is σ = 677149943040. Its totient is φ = 105334434240.

The previous prime is 318197772103. The next prime is 318197772133. The reversal of 318197772130 is 31277791813.

It is not an unprimeable number, because it can be changed into a prime (318197772133) 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, 78371806 + ... + 78375865.

It is an arithmetic number, because the mean of its divisors is an integer number (21160935720).

Almost surely, 2^318197772130 is an apocalyptic number.

318197772130 is an abundant number, since it is smaller than the sum of its proper divisors (358952170910).

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

318197772130 is a wasteful number, since it uses less digits than its factorization.

318197772130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156747714.

The product of its (nonzero) digits is 444528, while the sum is 49.

The spelling of 318197772130 in words is "three hundred eighteen billion, one hundred ninety-seven million, seven hundred seventy-two thousand, one hundred thirty".