7640868299 has 4 divisors (see below), whose sum is σ = 7641048240. Its totient is φ = 7640688360.

The previous prime is 7640868271. The next prime is 7640868311. The reversal of 7640868299 is 9928680467.

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 7640868299 - 2²⁰ = 7639819723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7640868269) 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, 13034 + ... + 124304.

It is an arithmetic number, because the mean of its divisors is an integer number (1910262060).

Almost surely, 2^7640868299 is an apocalyptic number.

7640868299 is a deficient number, since it is larger than the sum of its proper divisors (179941).

7640868299 is a wasteful number, since it uses less digits than its factorization.

7640868299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179940.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The square root of 7640868299 is about 87412.0603749849. The cubic root of 7640868299 is about 1969.6130119283.

The spelling of 7640868299 in words is "seven billion, six hundred forty million, eight hundred sixty-eight thousand, two hundred ninety-nine".