813970148822 has 4 divisors (see below), whose sum is σ = 1220955223236. Its totient is φ = 406985074410.

The previous prime is 813970148729. The next prime is 813970148857. The reversal of 813970148822 is 228841079318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 228841079318 = 2 ⋅114420539659.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203492537204 + ... + 203492537207.

It is an arithmetic number, because the mean of its divisors is an integer number (305238805809).

Almost surely, 2^813970148822 is an apocalyptic number.

813970148822 is a deficient number, since it is larger than the sum of its proper divisors (406985074414).

813970148822 is a wasteful number, since it uses less digits than its factorization.

813970148822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406985074413.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 813970148822 in words is "eight hundred thirteen billion, nine hundred seventy million, one hundred forty-eight thousand, eight hundred twenty-two".