402031551135050 has 96 divisors (see below), whose sum is σ = 799758150974640. Its totient is φ = 149827752345600.

The previous prime is 402031551134971. The next prime is 402031551135073. The reversal of 402031551135050 is 50531155130204.

It can be written as a sum of positive squares in 24 ways, for example, as 622352165449 + 401409198969601 = 788893^2 + 20035199^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 402031551135050.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99659270 + ... + 103614830.

Almost surely, 2^{402031551135050} is an apocalyptic number.

402031551135050 is a deficient number, since it is larger than the sum of its proper divisors (397726599839590).

402031551135050 is a wasteful number, since it uses less digits than its factorization.

402031551135050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3956796 (or 3956791 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 402031551135050 in words is "four hundred two trillion, thirty-one billion, five hundred fifty-one million, one hundred thirty-five thousand, fifty".