2649930556 has 192 divisors, whose sum is σ = 6467586048. Its totient is φ = 919683072.

The previous prime is 2649930541. The next prime is 2649930571. The reversal of 2649930556 is 6550399462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2649930541) and next prime (2649930571).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6119716 + ... + 6120148.

It is an arithmetic number, because the mean of its divisors is an integer number (33685344).

Almost surely, 2^2649930556 is an apocalyptic number.

2649930556 is a gapful number since it is divisible by the number (26) 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 2649930556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3233793024).

2649930556 is an abundant number, since it is smaller than the sum of its proper divisors (3817655492).

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

2649930556 is a wasteful number, since it uses less digits than its factorization.

2649930556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 49.

The square root of 2649930556 is about 51477.4762007618. The cubic root of 2649930556 is about 1383.8154156751.

The spelling of 2649930556 in words is "two billion, six hundred forty-nine million, nine hundred thirty thousand, five hundred fifty-six".