7862090649 has 16 divisors (see below), whose sum is σ = 12206374272. Its totient is φ = 4407856128.

The previous prime is 7862090627. The next prime is 7862090683. The reversal of 7862090649 is 9460902687.

It is a happy number.

It is not a de Polignac number, because 7862090649 - 2¹² = 7862086553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7862090749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3530824 + ... + 3533049.

It is an arithmetic number, because the mean of its divisors is an integer number (762898392).

Almost surely, 2^7862090649 is an apocalyptic number.

It is an amenable number.

7862090649 is a deficient number, since it is larger than the sum of its proper divisors (4344283623).

7862090649 is a wasteful number, since it uses less digits than its factorization.

7862090649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063936.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 7862090649 is about 88668.4309605172. The cubic root of 7862090649 is about 1988.4408761153.

The spelling of 7862090649 in words is "seven billion, eight hundred sixty-two million, ninety thousand, six hundred forty-nine".