400965890695 has 4 divisors (see below), whose sum is σ = 481159068840. Its totient is φ = 320772712552.

The previous prime is 400965890659. The next prime is 400965890707. The reversal of 400965890695 is 596098569004.

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

It is a cyclic number.

It is not a de Polignac number, because 400965890695 - 2¹³ = 400965882503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40096589065 + ... + 40096589074.

It is an arithmetic number, because the mean of its divisors is an integer number (120289767210).

Almost surely, 2^400965890695 is an apocalyptic number.

400965890695 is a deficient number, since it is larger than the sum of its proper divisors (80193178145).

400965890695 is an equidigital number, since it uses as much as digits as its factorization.

400965890695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80193178144.

The product of its (nonzero) digits is 20995200, while the sum is 61.

The spelling of 400965890695 in words is "four hundred billion, nine hundred sixty-five million, eight hundred ninety thousand, six hundred ninety-five".