2491073552159 has 4 divisors (see below), whose sum is σ = 2500265705760. Its totient is φ = 2481881398560.

The previous prime is 2491073552153. The next prime is 2491073552207. The reversal of 2491073552159 is 9512553701942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2491073552159 - 2⁸ = 2491073551903 is a prime.

It is a super-2 number, since 2×2491073552159² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2491073552159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491073552153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4596076394 + ... + 4596076935.

It is an arithmetic number, because the mean of its divisors is an integer number (625066426440).

Almost surely, 2^{2491073552159} is an apocalyptic number.

2491073552159 is a deficient number, since it is larger than the sum of its proper divisors (9192153601).

2491073552159 is an equidigital number, since it uses as much as digits as its factorization.

2491073552159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192153600.

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 2491073552159 in words is "two trillion, four hundred ninety-one billion, seventy-three million, five hundred fifty-two thousand, one hundred fifty-nine".