7642955542 has 24 divisors (see below), whose sum is σ = 12426641136. Its totient is φ = 3522487824.

The previous prime is 7642955513. The next prime is 7642955549. The reversal of 7642955542 is 2455592467.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642955549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116338 + ... + 169765.

It is an arithmetic number, because the mean of its divisors is an integer number (517776714).

Almost surely, 2^7642955542 is an apocalyptic number.

7642955542 is a deficient number, since it is larger than the sum of its proper divisors (4783685594).

7642955542 is a wasteful number, since it uses less digits than its factorization.

7642955542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286180 (or 286161 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 49.

The square root of 7642955542 is about 87423.9986616947. The cubic root of 7642955542 is about 1969.7923408794.

The spelling of 7642955542 in words is "seven billion, six hundred forty-two million, nine hundred fifty-five thousand, five hundred forty-two".