54978695516644 has 9 divisors (see below), whose sum is σ = 96212743105801. Its totient is φ = 27489340343560.

The previous prime is 54978695516603. The next prime is 54978695516653. The reversal of 54978695516644 is 44661559687945.

The square root of 54978695516644 is 7414762.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5322996494244 + 49655699022400 = 2307162^2 + 7046680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12975834 + ... + 16683214.

Almost surely, 2^{54978695516644} is an apocalyptic number.

54978695516644 is the 7414762-nd square number.

It is an amenable number.

54978695516644 is a deficient number, since it is larger than the sum of its proper divisors (41234047589157).

54978695516644 is an frugal number, since it uses more digits than its factorization.

54978695516644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414766 (or 3707383 counting only the distinct ones).

The product of its digits is 7838208000, while the sum is 79.

The spelling of 54978695516644 in words is "fifty-four trillion, nine hundred seventy-eight billion, six hundred ninety-five million, five hundred sixteen thousand, six hundred forty-four".