54421392001491 has 12 divisors (see below), whose sum is σ = 78608763077832. Its totient is φ = 36280888427616.

The previous prime is 54421392001453. The next prime is 54421392001519. The reversal of 54421392001491 is 19410029312445.

54421392001491 is a `hidden beast` number, since 5 + 4 + 4 + 2 + 139 + 20 + 0 + 1 + 491 = 666.

It is not a de Polignac number, because 54421392001491 - 2⁹ = 54421392000979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54421392001591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7155895 + ... + 12651071.

It is an arithmetic number, because the mean of its divisors is an integer number (6550730256486).

Almost surely, 2^{54421392001491} is an apocalyptic number.

54421392001491 is a deficient number, since it is larger than the sum of its proper divisors (24187371076341).

54421392001491 is a wasteful number, since it uses less digits than its factorization.

54421392001491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6595570 (or 6595567 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 54421392001491 in words is "fifty-four trillion, four hundred twenty-one billion, three hundred ninety-two million, one thousand, four hundred ninety-one".