7642059639 has 4 divisors (see below), whose sum is σ = 10189412856. Its totient is φ = 5094706424.

The previous prime is 7642059619. The next prime is 7642059641. The reversal of 7642059639 is 9369502467.

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 7642059639 - 2¹⁶ = 7641994103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7642059591 and 7642059600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642059619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273676604 + ... + 1273676609.

It is an arithmetic number, because the mean of its divisors is an integer number (2547353214).

Almost surely, 2^7642059639 is an apocalyptic number.

7642059639 is a deficient number, since it is larger than the sum of its proper divisors (2547353217).

7642059639 is a wasteful number, since it uses less digits than its factorization.

7642059639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547353216.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The square root of 7642059639 is about 87418.8746152683. The cubic root of 7642059639 is about 1969.7153718841.

The spelling of 7642059639 in words is "seven billion, six hundred forty-two million, fifty-nine thousand, six hundred thirty-nine".