2612991612 has 144 divisors (see below), whose sum is σ = 7907035136. Its totient is φ = 656726400.

The previous prime is 2612991607. The next prime is 2612991677. The reversal of 2612991612 is 2161992162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310938 + ... + 319230.

Almost surely, 2^2612991612 is an apocalyptic number.

2612991612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2612991612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3953517568).

2612991612 is an abundant number, since it is smaller than the sum of its proper divisors (5294043524).

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

2612991612 is a wasteful number, since it uses less digits than its factorization.

2612991612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8360 (or 8347 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 2612991612 is about 51117.4296302152. The cubic root of 2612991612 is about 1377.3553656375.

The spelling of 2612991612 in words is "two billion, six hundred twelve million, nine hundred ninety-one thousand, six hundred twelve".