401995899488 has 12 divisors (see below), whose sum is σ = 791429427180. Its totient is φ = 200997949728.

The previous prime is 401995899457. The next prime is 401995899511. The reversal of 401995899488 is 884998599104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281185898 + ... + 6281185961.

It is an arithmetic number, because the mean of its divisors is an integer number (65952452265).

Almost surely, 2^401995899488 is an apocalyptic number.

It is an amenable number.

401995899488 is a deficient number, since it is larger than the sum of its proper divisors (389433527692).

401995899488 is a wasteful number, since it uses less digits than its factorization.

401995899488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12562371869 (or 12562371861 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 74.

The spelling of 401995899488 in words is "four hundred one billion, nine hundred ninety-five million, eight hundred ninety-nine thousand, four hundred eighty-eight".