2617320651 has 8 divisors (see below), whose sum is σ = 3807011904. Its totient is φ = 1586254920.

The previous prime is 2617320619. The next prime is 2617320683. The reversal of 2617320651 is 1560237162.

It is an interprime number because it is at equal distance from previous prime (2617320619) and next prime (2617320683).

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

It is not a de Polignac number, because 2617320651 - 2⁵ = 2617320619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 79312747 = 2617320651 / (2 + 6 + 1 + 7 + 3 + 2 + 0 + 6 + 5 + 1).

It is not an unprimeable number, because it can be changed into a prime (2617320691) 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, 39656341 + ... + 39656406.

It is an arithmetic number, because the mean of its divisors is an integer number (475876488).

Almost surely, 2^2617320651 is an apocalyptic number.

2617320651 is a deficient number, since it is larger than the sum of its proper divisors (1189691253).

2617320651 is a wasteful number, since it uses less digits than its factorization.

2617320651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79312761.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2617320651 is about 51159.7561663462. The cubic root of 2617320651 is about 1378.1155843413.

The spelling of 2617320651 in words is "two billion, six hundred seventeen million, three hundred twenty thousand, six hundred fifty-one".