642501540054 has 48 divisors (see below), whose sum is σ = 1524941527824. Its totient is φ = 193889548800.

The previous prime is 642501540047. The next prime is 642501540071. The reversal of 642501540054 is 450045105246.

642501540054 is a `hidden beast` number, since 64 + 2 + 5 + 0 + 1 + 540 + 0 + 54 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6684559 + ... + 6779994.

It is an arithmetic number, because the mean of its divisors is an integer number (31769615163).

Almost surely, 2^642501540054 is an apocalyptic number.

642501540054 is an abundant number, since it is smaller than the sum of its proper divisors (882439987770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

642501540054 is a wasteful number, since it uses less digits than its factorization.

642501540054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13464813 (or 13464810 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 642501540054 in words is "six hundred forty-two billion, five hundred one million, five hundred forty thousand, fifty-four".