54400664481 has 8 divisors (see below), whose sum is σ = 72604576704. Its totient is φ = 36231930960.

The previous prime is 54400664467. The next prime is 54400664497. The reversal of 54400664481 is 18446600445.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-54400664481 is a prime.

It is a super-2 number, since 2×54400664481² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54400664081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8791066 + ... + 8797251.

It is an arithmetic number, because the mean of its divisors is an integer number (9075572088).

Almost surely, 2^54400664481 is an apocalyptic number.

It is an amenable number.

54400664481 is a deficient number, since it is larger than the sum of its proper divisors (18203912223).

54400664481 is a wasteful number, since it uses less digits than its factorization.

54400664481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17589351.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 54400664481 in words is "fifty-four billion, four hundred million, six hundred sixty-four thousand, four hundred eighty-one".