2490117787 has 4 divisors (see below), whose sum is σ = 2496794080. Its totient is φ = 2483441496.

The previous prime is 2490117769. The next prime is 2490117809. The reversal of 2490117787 is 7877110942.

2490117787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2490117787 - 2¹⁵ = 2490085019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2490117727) 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, 3337587 + ... + 3338332.

It is an arithmetic number, because the mean of its divisors is an integer number (624198520).

Almost surely, 2^2490117787 is an apocalyptic number.

2490117787 is a deficient number, since it is larger than the sum of its proper divisors (6676293).

2490117787 is an equidigital number, since it uses as much as digits as its factorization.

2490117787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6676292.

The product of its (nonzero) digits is 197568, while the sum is 46.

The square root of 2490117787 is about 49901.0800183723. The cubic root of 2490117787 is about 1355.4181499279.

The spelling of 2490117787 in words is "two billion, four hundred ninety million, one hundred seventeen thousand, seven hundred eighty-seven".