400696819007 has 4 divisors (see below), whose sum is σ = 405768930720. Its totient is φ = 395624707296.

The previous prime is 400696818983. The next prime is 400696819043. The reversal of 400696819007 is 700918696004.

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 400696819007 - 2¹² = 400696814911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400696819207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2536055738 + ... + 2536055895.

It is an arithmetic number, because the mean of its divisors is an integer number (101442232680).

Almost surely, 2^400696819007 is an apocalyptic number.

400696819007 is a deficient number, since it is larger than the sum of its proper divisors (5072111713).

400696819007 is an equidigital number, since it uses as much as digits as its factorization.

400696819007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072111712.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 400696819007 in words is "four hundred billion, six hundred ninety-six million, eight hundred nineteen thousand, seven".