615112022989 has 2 divisors, whose sum is σ = 615112022990. Its totient is φ = 615112022988.

The previous prime is 615112022983. The next prime is 615112023061. The reversal of 615112022989 is 989220211516.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 556019274889 + 59092748100 = 745667^2 + 243090^2 .

It is a cyclic number.

It is not a de Polignac number, because 615112022989 - 2¹⁵ = 615111990221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615112022983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307556011494 + 307556011495.

It is an arithmetic number, because the mean of its divisors is an integer number (307556011495).

Almost surely, 2^615112022989 is an apocalyptic number.

It is an amenable number.

615112022989 is a deficient number, since it is larger than the sum of its proper divisors (1).

615112022989 is an equidigital number, since it uses as much as digits as its factorization.

615112022989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 615112022989 in words is "six hundred fifteen billion, one hundred twelve million, twenty-two thousand, nine hundred eighty-nine".