400054297617 has 72 divisors (see below), whose sum is σ = 629171427456. Its totient is φ = 244836079488.

The previous prime is 400054297609. The next prime is 400054297619. The reversal of 400054297617 is 716792450004.

400054297617 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 5 + 4 + 29 + 7 + 617 = 666.

It is not a de Polignac number, because 400054297617 - 2³ = 400054297609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400054297619) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 262674418 + ... + 262675940.

It is an arithmetic number, because the mean of its divisors is an integer number (8738492048).

Almost surely, 2^400054297617 is an apocalyptic number.

It is an amenable number.

400054297617 is a deficient number, since it is larger than the sum of its proper divisors (229117129839).

400054297617 is a wasteful number, since it uses less digits than its factorization.

400054297617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391 (or 2375 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 400054297617 in words is "four hundred billion, fifty-four million, two hundred ninety-seven thousand, six hundred seventeen".