2941991556 has 36 divisors (see below), whose sum is σ = 7985407248. Its totient is φ = 840568848.

The previous prime is 2941991551. The next prime is 2941991561. The reversal of 2941991556 is 6551991492.

It is an interprime number because it is at equal distance from previous prime (2941991551) and next prime (2941991561).

It is a super-2 number, since 2×2941991556² = 17310628631150602272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2941991499 and 2941991508.

It is not an unprimeable number, because it can be changed into a prime (2941991551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2501106 + ... + 2502281.

It is an arithmetic number, because the mean of its divisors is an integer number (221816868).

Almost surely, 2^2941991556 is an apocalyptic number.

It is an amenable number.

2941991556 is an abundant number, since it is smaller than the sum of its proper divisors (5043415692).

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

2941991556 is a wasteful number, since it uses less digits than its factorization.

2941991556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003408 (or 5003399 counting only the distinct ones).

The product of its digits is 874800, while the sum is 51.

The square root of 2941991556 is about 54240.1286502899. The cubic root of 2941991556 is about 1432.8931525682.

The spelling of 2941991556 in words is "two billion, nine hundred forty-one million, nine hundred ninety-one thousand, five hundred fifty-six".