54437460721 has 16 divisors (see below), whose sum is σ = 63019417600. Its totient is φ = 46060494480.

The previous prime is 54437460713. The next prime is 54437460767. The reversal of 54437460721 is 12706473445.

It is not a de Polignac number, because 54437460721 - 2³ = 54437460713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54437460821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23056 + ... + 330766.

It is an arithmetic number, because the mean of its divisors is an integer number (3938713600).

Almost surely, 2^54437460721 is an apocalyptic number.

It is an amenable number.

54437460721 is a deficient number, since it is larger than the sum of its proper divisors (8581956879).

54437460721 is a wasteful number, since it uses less digits than its factorization.

54437460721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308044.

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 54437460721 in words is "fifty-four billion, four hundred thirty-seven million, four hundred sixty thousand, seven hundred twenty-one".