54421631064 has 24 divisors (see below), whose sum is σ = 147391917660. Its totient is φ = 18140543664.

The previous prime is 54421631063. The next prime is 54421631083. The reversal of 54421631064 is 46013612445.

54421631064 is a `hidden beast` number, since 544 + 2 + 1 + 6 + 3 + 106 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×54421631064² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54421631063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377927922 + ... + 377928065.

Almost surely, 2^54421631064 is an apocalyptic number.

It is an amenable number.

54421631064 is an abundant number, since it is smaller than the sum of its proper divisors (92970286596).

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

54421631064 is a wasteful number, since it uses less digits than its factorization.

54421631064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755855999 (or 755855992 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 54421631064 in words is "fifty-four billion, four hundred twenty-one million, six hundred thirty-one thousand, sixty-four".