642277655054 has 48 divisors (see below), whose sum is σ = 1188127589760. Its totient is φ = 259182866880.

The previous prime is 642277655039. The next prime is 642277655093. The reversal of 642277655054 is 450556772246.

It is a junction number, because it is equal to n+sod(n) for n = 642277654987 and 642277655005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2744549 + ... + 2969360.

It is an arithmetic number, because the mean of its divisors is an integer number (24752658120).

Almost surely, 2^642277655054 is an apocalyptic number.

642277655054 is a deficient number, since it is larger than the sum of its proper divisors (545849934706).

642277655054 is a wasteful number, since it uses less digits than its factorization.

642277655054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5713993 (or 5713986 counting only the distinct ones).

The product of its (nonzero) digits is 14112000, while the sum is 53.

The spelling of 642277655054 in words is "six hundred forty-two billion, two hundred seventy-seven million, six hundred fifty-five thousand, fifty-four".