400161373688 has 8 divisors (see below), whose sum is σ = 750302575680. Its totient is φ = 200080686840.

The previous prime is 400161373673. The next prime is 400161373757. The reversal of 400161373688 is 886373161004.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25010085848 + ... + 25010085863.

It is an arithmetic number, because the mean of its divisors is an integer number (93787821960).

Almost surely, 2^400161373688 is an apocalyptic number.

It is an amenable number.

400161373688 is a deficient number, since it is larger than the sum of its proper divisors (350141201992).

400161373688 is a wasteful number, since it uses less digits than its factorization.

400161373688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50020171717 (or 50020171713 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 400161373688 in words is "four hundred billion, one hundred sixty-one million, three hundred seventy-three thousand, six hundred eighty-eight".