2646579651 has 8 divisors (see below), whose sum is σ = 3531282960. Its totient is φ = 1763131392.

The previous prime is 2646579587. The next prime is 2646579671. The reversal of 2646579651 is 1569756462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2646579651 - 2⁶ = 2646579587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2646579594 and 2646579603.

It is not an unprimeable number, because it can be changed into a prime (2646579671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308830 + ... + 317283.

It is an arithmetic number, because the mean of its divisors is an integer number (441410370).

Almost surely, 2^2646579651 is an apocalyptic number.

2646579651 is a deficient number, since it is larger than the sum of its proper divisors (884703309).

2646579651 is a wasteful number, since it uses less digits than its factorization.

2646579651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627525.

The product of its digits is 2721600, while the sum is 51.

The square root of 2646579651 is about 51444.9186120456. The cubic root of 2646579651 is about 1383.2318796388.

The spelling of 2646579651 in words is "two billion, six hundred forty-six million, five hundred seventy-nine thousand, six hundred fifty-one".