1008792772155 has 144 divisors (see below), whose sum is σ = 2134815830784. Its totient is φ = 455604004800.

The previous prime is 1008792772139. The next prime is 1008792772181. The reversal of 1008792772155 is 5512772978001.

It is not a de Polignac number, because 1008792772155 - 2⁴ = 1008792772139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4839330 + ... + 5043480.

It is an arithmetic number, because the mean of its divisors is an integer number (14825109936).

Almost surely, 2^{1008792772155} is an apocalyptic number.

1008792772155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1008792772155 is an abundant number, since it is smaller than the sum of its proper divisors (1126023058629).

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

1008792772155 is an equidigital number, since it uses as much as digits as its factorization.

1008792772155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204268 (or 204249 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 54.

The spelling of 1008792772155 in words is "one trillion, eight billion, seven hundred ninety-two million, seven hundred seventy-two thousand, one hundred fifty-five".