2391520086 has 64 divisors (see below), whose sum is σ = 5474462400. Its totient is φ = 773307648.

The previous prime is 2391520081. The next prime is 2391520091. The reversal of 2391520086 is 6800251932.

It is an interprime number because it is at equal distance from previous prime (2391520081) and next prime (2391520091).

It is a self number, because there is not a number n which added to its sum of digits gives 2391520086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391520081) 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 31 ways as a sum of consecutive naturals, for example, 743650 + ... + 746858.

It is an arithmetic number, because the mean of its divisors is an integer number (85538475).

Almost surely, 2^2391520086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2391520086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737231200).

2391520086 is an abundant number, since it is smaller than the sum of its proper divisors (3082942314).

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

2391520086 is a wasteful number, since it uses less digits than its factorization.

2391520086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2391520086 is about 48903.1705107143. The cubic root of 2391520086 is about 1337.2871688133.

The spelling of 2391520086 in words is "two billion, three hundred ninety-one million, five hundred twenty thousand, eighty-six".