54121767617646 has 48 divisors (see below), whose sum is σ = 123045845420160. Its totient is φ = 17159812298640.

The previous prime is 54121767617639. The next prime is 54121767617677. The reversal of 54121767617646 is 64671676712145.

54121767617646 is a `hidden beast` number, since 5 + 4 + 1 + 2 + 1 + 7 + 6 + 7 + 617 + 6 + 4 + 6 = 666.

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, 365090440 + ... + 365238651.

It is an arithmetic number, because the mean of its divisors is an integer number (2563455112920).

Almost surely, 2^{54121767617646} is an apocalyptic number.

54121767617646 is an abundant number, since it is smaller than the sum of its proper divisors (68924077802514).

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

54121767617646 is a wasteful number, since it uses less digits than its factorization.

54121767617646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730329301 (or 730329298 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 54121767617646 in words is "fifty-four trillion, one hundred twenty-one billion, seven hundred sixty-seven million, six hundred seventeen thousand, six hundred forty-six".