612140002564 has 6 divisors (see below), whose sum is σ = 1071245004494. Its totient is φ = 306070001280.

The previous prime is 612140002561. The next prime is 612140002597. The reversal of 612140002564 is 465200041216.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 577782414400 + 34357588164 = 760120^2 + 185358^2 .

It is not an unprimeable number, because it can be changed into a prime (612140002561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76517500317 + ... + 76517500324.

Almost surely, 2^612140002564 is an apocalyptic number.

It is an amenable number.

612140002564 is a deficient number, since it is larger than the sum of its proper divisors (459105001930).

612140002564 is a wasteful number, since it uses less digits than its factorization.

612140002564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153035000645 (or 153035000643 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 612140002564 in words is "six hundred twelve billion, one hundred forty million, two thousand, five hundred sixty-four".