2490763739591 has 4 divisors (see below), whose sum is σ = 2509777203384. Its totient is φ = 2471750275800.

The previous prime is 2490763739579. The next prime is 2490763739599. The reversal of 2490763739591 is 1959373670942.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2490763739591 is a prime.

It is a super-2 number, since 2×2490763739591² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490763739599) 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, 9506731700 + ... + 9506731961.

It is an arithmetic number, because the mean of its divisors is an integer number (627444300846).

Almost surely, 2^{2490763739591} is an apocalyptic number.

2490763739591 is a deficient number, since it is larger than the sum of its proper divisors (19013463793).

2490763739591 is a wasteful number, since it uses less digits than its factorization.

2490763739591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19013463792.

The product of its (nonzero) digits is 77157360, while the sum is 65.

The spelling of 2490763739591 in words is "two trillion, four hundred ninety billion, seven hundred sixty-three million, seven hundred thirty-nine thousand, five hundred ninety-one".