318499025982 has 16 divisors (see below), whose sum is σ = 640199049600. Its totient is φ = 105632842392.

The previous prime is 318499025969. The next prime is 318499025993. The reversal of 318499025982 is 289520994813.

It is a super-2 number, since 2×318499025982² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133373608 + ... + 133375995.

It is an arithmetic number, because the mean of its divisors is an integer number (40012440600).

Almost surely, 2^318499025982 is an apocalyptic number.

318499025982 is an abundant number, since it is smaller than the sum of its proper divisors (321700023618).

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

318499025982 is a wasteful number, since it uses less digits than its factorization.

318499025982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266749807.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 318499025982 in words is "three hundred eighteen billion, four hundred ninety-nine million, twenty-five thousand, nine hundred eighty-two".