2917640651 has 4 divisors (see below), whose sum is σ = 2952793032. Its totient is φ = 2882488272.

The previous prime is 2917640633. The next prime is 2917640659. The reversal of 2917640651 is 1560467192.

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-2917640651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2917640599 and 2917640608.

It is not an unprimeable number, because it can be changed into a prime (2917640659) 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, 17576066 + ... + 17576231.

It is an arithmetic number, because the mean of its divisors is an integer number (738198258).

Almost surely, 2^2917640651 is an apocalyptic number.

2917640651 is a deficient number, since it is larger than the sum of its proper divisors (35152381).

2917640651 is an equidigital number, since it uses as much as digits as its factorization.

2917640651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35152380.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 2917640651 is about 54015.1890767773. The cubic root of 2917640651 is about 1428.9288359521.

The spelling of 2917640651 in words is "two billion, nine hundred seventeen million, six hundred forty thousand, six hundred fifty-one".