402888190971 has 12 divisors (see below), whose sum is σ = 624887806632. Its totient is φ = 230221823328.

The previous prime is 402888190937. The next prime is 402888190981. The reversal of 402888190971 is 179091888204.

It is not a de Polignac number, because 402888190971 - 2³⁰ = 401814449147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402888190981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1370367850 + ... + 1370368143.

It is an arithmetic number, because the mean of its divisors is an integer number (52073983886).

Almost surely, 2^402888190971 is an apocalyptic number.

402888190971 is a deficient number, since it is larger than the sum of its proper divisors (221999615661).

402888190971 is a wasteful number, since it uses less digits than its factorization.

402888190971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740736010 (or 2740736003 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 402888190971 in words is "four hundred two billion, eight hundred eighty-eight million, one hundred ninety thousand, nine hundred seventy-one".