2601695412 has 18 divisors (see below), whose sum is σ = 6576507938. Its totient is φ = 867231792.

The previous prime is 2601695381. The next prime is 2601695431. The reversal of 2601695412 is 2145961062.

2601695412 is a `hidden beast` number, since 2 + 601 + 6 + 9 + 5 + 41 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1440657936 + 1161037476 = 37956^2 + 34074^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 72269317 = 2601695412 / (2 + 6 + 0 + 1 + 6 + 9 + 5 + 4 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36134623 + ... + 36134694.

Almost surely, 2^2601695412 is an apocalyptic number.

It is an amenable number.

2601695412 is an abundant number, since it is smaller than the sum of its proper divisors (3974812526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2601695412 is a wasteful number, since it uses less digits than its factorization.

2601695412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72269327 (or 72269322 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2601695412 is about 51006.8173090617. The cubic root of 2601695412 is about 1375.3676878058.

The spelling of 2601695412 in words is "two billion, six hundred one million, six hundred ninety-five thousand, four hundred twelve".