2391291480 has 32 divisors (see below), whose sum is σ = 7173874800. Its totient is φ = 637677696.

The previous prime is 2391291479. The next prime is 2391291491. The reversal of 2391291480 is 841921932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9963595 + ... + 9963834.

Almost surely, 2^2391291480 is an apocalyptic number.

2391291480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2391291480 is an abundant number, since it is smaller than the sum of its proper divisors (4782583320).

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

2391291480 is a wasteful number, since it uses less digits than its factorization.

2391291480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19927443 (or 19927439 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 2391291480 is about 48900.8331217373. The cubic root of 2391291480 is about 1337.2445569178.

The spelling of 2391291480 in words is "two billion, three hundred ninety-one million, two hundred ninety-one thousand, four hundred eighty".