400340131322916 has 96 divisors (see below), whose sum is σ = 965386628640000. Its totient is φ = 129027869042688.

The previous prime is 400340131322909. The next prime is 400340131322917. The reversal of 400340131322916 is 619223131043004.

It is not an unprimeable number, because it can be changed into a prime (400340131322917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68679640 + ... + 74280368.

It is an arithmetic number, because the mean of its divisors is an integer number (10056110715000).

Almost surely, 2^{400340131322916} is an apocalyptic number.

It is an amenable number.

400340131322916 is an abundant number, since it is smaller than the sum of its proper divisors (565046497317084).

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

400340131322916 is a wasteful number, since it uses less digits than its factorization.

400340131322916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601781 (or 5601779 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 400340131322916 in words is "four hundred trillion, three hundred forty billion, one hundred thirty-one million, three hundred twenty-two thousand, nine hundred sixteen".