7642438699259 has 16 divisors (see below), whose sum is σ = 9406478450880. Its totient is φ = 6046507509120.

The previous prime is 7642438699253. The next prime is 7642438699271. The reversal of 7642438699259 is 9529968342467.

It is not a de Polignac number, because 7642438699259 - 2¹⁶ = 7642438633723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7642438699253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379769 + ... + 3927989.

It is an arithmetic number, because the mean of its divisors is an integer number (587904903180).

Almost surely, 2^{7642438699259} is an apocalyptic number.

7642438699259 is a deficient number, since it is larger than the sum of its proper divisors (1764039751621).

7642438699259 is a wasteful number, since it uses less digits than its factorization.

7642438699259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571910.

The product of its digits is 1410877440, while the sum is 74.

The spelling of 7642438699259 in words is "seven trillion, six hundred forty-two billion, four hundred thirty-eight million, six hundred ninety-nine thousand, two hundred fifty-nine".