981475980402 has 32 divisors (see below), whose sum is σ = 1980665505792. Its totient is φ = 324212281344.

The previous prime is 981475980389. The next prime is 981475980421. The reversal of 981475980402 is 204089574189.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66063 + ... + 1402610.

It is an arithmetic number, because the mean of its divisors is an integer number (61895797056).

Almost surely, 2^981475980402 is an apocalyptic number.

981475980402 is an abundant number, since it is smaller than the sum of its proper divisors (999189525390).

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

981475980402 is a wasteful number, since it uses less digits than its factorization.

981475980402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469682.

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 981475980402 in words is "nine hundred eighty-one billion, four hundred seventy-five million, nine hundred eighty thousand, four hundred two".