2610063991 has 4 divisors (see below), whose sum is σ = 2747435800. Its totient is φ = 2472692184.

The previous prime is 2610063979. The next prime is 2610064013. The reversal of 2610063991 is 1993600162.

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 2610063991 - 2¹¹ = 2610061943 is a prime.

It is a super-2 number, since 2×2610063991² = 13624868074229696162, which 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 2610063991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2610063931) 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, 68685876 + ... + 68685913.

It is an arithmetic number, because the mean of its divisors is an integer number (686858950).

Almost surely, 2^2610063991 is an apocalyptic number.

2610063991 is a deficient number, since it is larger than the sum of its proper divisors (137371809).

2610063991 is a wasteful number, since it uses less digits than its factorization.

2610063991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137371808.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 2610063991 is about 51088.7853740916. The cubic root of 2610063991 is about 1376.8407726600.

The spelling of 2610063991 in words is "two billion, six hundred ten million, sixty-three thousand, nine hundred ninety-one".