811502204018 has 16 divisors (see below), whose sum is σ = 1338368707584. Its totient is φ = 365960190960.

The previous prime is 811502204017. The next prime is 811502204053. The reversal of 811502204018 is 810402205118.

It is not an unprimeable number, because it can be changed into a prime (811502204011) 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, 145219505 + ... + 145225092.

It is an arithmetic number, because the mean of its divisors is an integer number (83648044224).

Almost surely, 2^811502204018 is an apocalyptic number.

811502204018 is a deficient number, since it is larger than the sum of its proper divisors (526866503566).

811502204018 is a wasteful number, since it uses less digits than its factorization.

811502204018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290444737.

The product of its (nonzero) digits is 5120, while the sum is 32.

The spelling of 811502204018 in words is "eight hundred eleven billion, five hundred two million, two hundred four thousand, eighteen".