642924508076 has 18 divisors (see below), whose sum is σ = 1187451292860. Its totient is φ = 304543187352.

The previous prime is 642924508073. The next prime is 642924508097. The reversal of 642924508076 is 670805429246.

It is a happy number.

642924508076 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (642924508073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222617846 + ... + 222620733.

It is an arithmetic number, because the mean of its divisors is an integer number (65969516270).

Almost surely, 2^642924508076 is an apocalyptic number.

It is an amenable number.

642924508076 is a deficient number, since it is larger than the sum of its proper divisors (544526784784).

642924508076 is a wasteful number, since it uses less digits than its factorization.

642924508076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445238621 (or 445238600 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 642924508076 in words is "six hundred forty-two billion, nine hundred twenty-four million, five hundred eight thousand, seventy-six".