1228792793238 has 64 divisors (see below), whose sum is σ = 2926972117440. Its totient is φ = 385503598080.

The previous prime is 1228792793143. The next prime is 1228792793251. The reversal of 1228792793238 is 8323972978221.

1228792793238 is a `hidden beast` number, since 1 + 2 + 287 + 9 + 27 + 9 + 323 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8188323 + ... + 8337038.

It is an arithmetic number, because the mean of its divisors is an integer number (45733939335).

Almost surely, 2^{1228792793238} is an apocalyptic number.

1228792793238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1228792793238 is an abundant number, since it is smaller than the sum of its proper divisors (1698179324202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1228792793238 is an equidigital number, since it uses as much as digits as its factorization.

1228792793238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16525401 (or 16525383 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 63.

The spelling of 1228792793238 in words is "one trillion, two hundred twenty-eight billion, seven hundred ninety-two million, seven hundred ninety-three thousand, two hundred thirty-eight".