400847717957 has 8 divisors (see below), whose sum is σ = 413792765952. Its totient is φ = 387903574800.

The previous prime is 400847717953. The next prime is 400847717981. The reversal of 400847717957 is 759717748004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400847717957 - 2² = 400847717953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400847717896 and 400847717905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400847717953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739628 + ... + 1161354.

It is an arithmetic number, because the mean of its divisors is an integer number (51724095744).

Almost surely, 2^400847717957 is an apocalyptic number.

It is an amenable number.

400847717957 is a deficient number, since it is larger than the sum of its proper divisors (12945047995).

400847717957 is a wasteful number, since it uses less digits than its factorization.

400847717957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452419.

The product of its (nonzero) digits is 13829760, while the sum is 59.

The spelling of 400847717957 in words is "four hundred billion, eight hundred forty-seven million, seven hundred seventeen thousand, nine hundred fifty-seven".