54861265108877 has 2 divisors, whose sum is σ = 54861265108878. Its totient is φ = 54861265108876.

The previous prime is 54861265108801. The next prime is 54861265108907. The reversal of 54861265108877 is 77880156216845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52156865124841 + 2704399984036 = 7221971^2 + 1644506^2 .

It is a cyclic number.

It is not a de Polignac number, because 54861265108877 - 2¹⁶ = 54861265043341 is a prime.

It is a super-2 number, since 2×54861265108877² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54861265108777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27430632554438 + 27430632554439.

It is an arithmetic number, because the mean of its divisors is an integer number (27430632554439).

Almost surely, 2^{54861265108877} is an apocalyptic number.

It is an amenable number.

54861265108877 is a deficient number, since it is larger than the sum of its proper divisors (1).

54861265108877 is an equidigital number, since it uses as much as digits as its factorization.

54861265108877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180633600, while the sum is 68.

The spelling of 54861265108877 in words is "fifty-four trillion, eight hundred sixty-one billion, two hundred sixty-five million, one hundred eight thousand, eight hundred seventy-seven".