401107956913 has 4 divisors (see below), whose sum is σ = 401110378020. Its totient is φ = 401105535808.

The previous prime is 401107956877. The next prime is 401107956923. The reversal of 401107956913 is 319659701104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16091429904 + 385016527009 = 126852^2 + 620497^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401107956913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401107956923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942220 + ... + 1299997.

It is an arithmetic number, because the mean of its divisors is an integer number (100277594505).

Almost surely, 2^401107956913 is an apocalyptic number.

It is an amenable number.

401107956913 is a deficient number, since it is larger than the sum of its proper divisors (2421107).

401107956913 is a wasteful number, since it uses less digits than its factorization.

401107956913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2421106.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 401107956913 in words is "four hundred one billion, one hundred seven million, nine hundred fifty-six thousand, nine hundred thirteen".