54775621761719 has 8 divisors (see below), whose sum is σ = 55066400981760. Its totient is φ = 54484884165600.

The previous prime is 54775621761709. The next prime is 54775621761743. The reversal of 54775621761719 is 91716712657745.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 54775621761719 - 2⁴⁴ = 37183435717303 is a prime.

It is a super-2 number, since 2×54775621761719² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54775621761709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7765292 + ... + 13032689.

It is an arithmetic number, because the mean of its divisors is an integer number (6883300122720).

Almost surely, 2^{54775621761719} is an apocalyptic number.

54775621761719 is a deficient number, since it is larger than the sum of its proper divisors (290779220041).

54775621761719 is a wasteful number, since it uses less digits than its factorization.

54775621761719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20811961.

The product of its digits is 155584800, while the sum is 68.

The spelling of 54775621761719 in words is "fifty-four trillion, seven hundred seventy-five billion, six hundred twenty-one million, seven hundred sixty-one thousand, seven hundred nineteen".