2661412886 has 32 divisors (see below), whose sum is σ = 4479154848. Its totient is φ = 1175351040.

The previous prime is 2661412847. The next prime is 2661412891. The reversal of 2661412886 is 6882141662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692426 + ... + 696258.

It is an arithmetic number, because the mean of its divisors is an integer number (139973589).

Almost surely, 2^2661412886 is an apocalyptic number.

2661412886 is a deficient number, since it is larger than the sum of its proper divisors (1817741962).

2661412886 is a wasteful number, since it uses less digits than its factorization.

2661412886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736.

The product of its digits is 221184, while the sum is 44.

The square root of 2661412886 is about 51588.8833567853. The cubic root of 2661412886 is about 1385.8112579592.

The spelling of 2661412886 in words is "two billion, six hundred sixty-one million, four hundred twelve thousand, eight hundred eighty-six".