1022865079117 has 6 divisors (see below), whose sum is σ = 1189863459438. Its totient is φ = 876741496344.

The previous prime is 1022865079111. The next prime is 1022865079123. The reversal of 1022865079117 is 7119705682201.

It is an interprime number because it is at equal distance from previous prime (1022865079111) and next prime (1022865079123).

It can be written as a sum of positive squares in only one way, i.e., 862556130121 + 160308948996 = 928739^2 + 400386^2 .

It is not a de Polignac number, because 1022865079117 - 2²⁷ = 1022730861389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 20874797533 = 1022865079117 / (1 + 0 + 2 + 2 + 8 + 6 + 5 + 0 + 7 + 9 + 1 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022865079111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10437398718 + ... + 10437398815.

It is an arithmetic number, because the mean of its divisors is an integer number (198310576573).

Almost surely, 2^{1022865079117} is an apocalyptic number.

It is an amenable number.

1022865079117 is a deficient number, since it is larger than the sum of its proper divisors (166998380321).

1022865079117 is an equidigital number, since it uses as much as digits as its factorization.

1022865079117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20874797547 (or 20874797540 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 49.

The spelling of 1022865079117 in words is "one trillion, twenty-two billion, eight hundred sixty-five million, seventy-nine thousand, one hundred seventeen".