400521535014522 has 128 divisors (see below), whose sum is σ = 857212914954240. Its totient is φ = 124398742256640.

The previous prime is 400521535014493. The next prime is 400521535014527. The reversal of 400521535014522 is 225410535125004.

It is not an unprimeable number, because it can be changed into a prime (400521535014527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1011340098 + ... + 1011736050.

It is an arithmetic number, because the mean of its divisors is an integer number (6696975898080).

Almost surely, 2^{400521535014522} is an apocalyptic number.

400521535014522 is an abundant number, since it is smaller than the sum of its proper divisors (456691379939718).

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

400521535014522 is a wasteful number, since it uses less digits than its factorization.

400521535014522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396668.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 400521535014522 in words is "four hundred trillion, five hundred twenty-one billion, five hundred thirty-five million, fourteen thousand, five hundred twenty-two".