400127457496 has 64 divisors (see below), whose sum is σ = 829951728480. Its totient is φ = 179647165440.

The previous prime is 400127457479. The next prime is 400127457497. The reversal of 400127457496 is 694754721004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400127457497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32574876 + ... + 32587156.

Almost surely, 2^400127457496 is an apocalyptic number.

It is an amenable number.

400127457496 is an abundant number, since it is smaller than the sum of its proper divisors (429824270984).

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

400127457496 is a wasteful number, since it uses less digits than its factorization.

400127457496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804 (or 20800 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 400127457496 in words is "four hundred billion, one hundred twenty-seven million, four hundred fifty-seven thousand, four hundred ninety-six".