22870815361 has 9 divisors (see below), whose sum is σ = 23421723651. Its totient is φ = 22332584232.

The previous prime is 22870815329. The next prime is 22870815379. The reversal of 22870815361 is 16351807822.

The square root of 22870815361 is 151231.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 21943978225 + 926837136 = 148135^2 + 30444^2 .

It is not a de Polignac number, because 22870815361 - 2⁵ = 22870815329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22870815761) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6501175 + ... + 6504691.

It is an arithmetic number, because the mean of its divisors is an integer number (2602413739).

Almost surely, 2^22870815361 is an apocalyptic number.

22870815361 is the 151231-st square number.

22870815361 is the 75616-th centered octagonal number.

It is an amenable number.

22870815361 is a deficient number, since it is larger than the sum of its proper divisors (550908290).

22870815361 is an frugal number, since it uses more digits than its factorization.

22870815361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7120 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 22870815361 in words is "twenty-two billion, eight hundred seventy million, eight hundred fifteen thousand, three hundred sixty-one".