54610487721 has 12 divisors (see below), whose sum is σ = 79365755248. Its totient is φ = 36183635064.

The previous prime is 54610487719. The next prime is 54610487731. The reversal of 54610487721 is 12778401645.

54610487721 is a `hidden beast` number, since 5 + 4 + 610 + 4 + 8 + 7 + 7 + 21 = 666.

It is not a de Polignac number, because 54610487721 - 2¹ = 54610487719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54610487731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18611515 + ... + 18614448.

Almost surely, 2^54610487721 is an apocalyptic number.

It is an amenable number.

54610487721 is a deficient number, since it is larger than the sum of its proper divisors (24755267527).

54610487721 is a wasteful number, since it uses less digits than its factorization.

54610487721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37226132 (or 37226129 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 54610487721 in words is "fifty-four billion, six hundred ten million, four hundred eighty-seven thousand, seven hundred twenty-one".