54171722889412 has 24 divisors (see below), whose sum is σ = 95056338528536. Its totient is φ = 27012771571968.

The previous prime is 54171722889409. The next prime is 54171722889439. The reversal of 54171722889412 is 21498822717145.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2659293378756 + 51512429510656 = 1630734^2 + 7177216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94212178 + ... + 94785430.

Almost surely, 2^{54171722889412} is an apocalyptic number.

It is an amenable number.

54171722889412 is a deficient number, since it is larger than the sum of its proper divisors (40884615639124).

54171722889412 is a wasteful number, since it uses less digits than its factorization.

54171722889412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636967 (or 636965 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 61.

The spelling of 54171722889412 in words is "fifty-four trillion, one hundred seventy-one billion, seven hundred twenty-two million, eight hundred eighty-nine thousand, four hundred twelve".