54643614512540 has 48 divisors (see below), whose sum is σ = 119357478180864. Its totient is φ = 20990898427200.

The previous prime is 54643614512537. The next prime is 54643614512569. The reversal of 54643614512540 is 4521541634645.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336311384 + ... + 336473823.

It is an arithmetic number, because the mean of its divisors is an integer number (2486614128768).

Almost surely, 2^{54643614512540} is an apocalyptic number.

It is an amenable number.

54643614512540 is an abundant number, since it is smaller than the sum of its proper divisors (64713863668324).

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

54643614512540 is a wasteful number, since it uses less digits than its factorization.

54643614512540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672785378 (or 672785376 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 50.

The spelling of 54643614512540 in words is "fifty-four trillion, six hundred forty-three billion, six hundred fourteen million, five hundred twelve thousand, five hundred forty".