811399425038 has 16 divisors (see below), whose sum is σ = 1245063161664. Its totient is φ = 396407097600.

The previous prime is 811399425037. The next prime is 811399425047. The reversal of 811399425038 is 830524993118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811399425037) 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, 7124795 + ... + 7237782.

It is an arithmetic number, because the mean of its divisors is an integer number (77816447604).

Almost surely, 2^811399425038 is an apocalyptic number.

811399425038 is a deficient number, since it is larger than the sum of its proper divisors (433663736626).

811399425038 is a wasteful number, since it uses less digits than its factorization.

811399425038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14363227.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 811399425038 in words is "eight hundred eleven billion, three hundred ninety-nine million, four hundred twenty-five thousand, thirty-eight".