54698721874 has 4 divisors (see below), whose sum is σ = 82048082814. Its totient is φ = 27349360936.

The previous prime is 54698721829. The next prime is 54698721887. The reversal of 54698721874 is 47812789645.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47812789645 = 5 ⋅9562557929.

It can be written as a sum of positive squares in only one way, i.e., 54245670649 + 453051225 = 232907^2 + 21285^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13674680467 + ... + 13674680470.

Almost surely, 2^54698721874 is an apocalyptic number.

54698721874 is a deficient number, since it is larger than the sum of its proper divisors (27349360940).

54698721874 is a wasteful number, since it uses less digits than its factorization.

54698721874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27349360939.

The product of its digits is 27095040, while the sum is 61.

The spelling of 54698721874 in words is "fifty-four billion, six hundred ninety-eight million, seven hundred twenty-one thousand, eight hundred seventy-four".