54621726772 has 6 divisors (see below), whose sum is σ = 95588021858. Its totient is φ = 27310863384.

The previous prime is 54621726739. The next prime is 54621726791. The reversal of 54621726772 is 27762712645.

It can be written as a sum of positive squares in only one way, i.e., 52497807376 + 2123919396 = 229124^2 + 46086^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6827715843 + ... + 6827715850.

Almost surely, 2^54621726772 is an apocalyptic number.

It is an amenable number.

54621726772 is a deficient number, since it is larger than the sum of its proper divisors (40966295086).

54621726772 is a wasteful number, since it uses less digits than its factorization.

54621726772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655431697 (or 13655431695 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 49.

The spelling of 54621726772 in words is "fifty-four billion, six hundred twenty-one million, seven hundred twenty-six thousand, seven hundred seventy-two".