2612379561 has 16 divisors (see below), whose sum is σ = 3902524608. Its totient is φ = 1540468800.

The previous prime is 2612379541. The next prime is 2612379589. The reversal of 2612379561 is 1659732162.

It is not a de Polignac number, because 2612379561 - 2⁵ = 2612379529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2612379541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1068550 + ... + 1070991.

It is an arithmetic number, because the mean of its divisors is an integer number (243907788).

Almost surely, 2^2612379561 is an apocalyptic number.

It is an amenable number.

2612379561 is a deficient number, since it is larger than the sum of its proper divisors (1290145047).

2612379561 is a wasteful number, since it uses less digits than its factorization.

2612379561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139592.

The product of its digits is 136080, while the sum is 42.

The square root of 2612379561 is about 51111.4425642634. The cubic root of 2612379561 is about 1377.2478161715.

The spelling of 2612379561 in words is "two billion, six hundred twelve million, three hundred seventy-nine thousand, five hundred sixty-one".