54697807771 has 2 divisors, whose sum is σ = 54697807772. Its totient is φ = 54697807770.

The previous prime is 54697807757. The next prime is 54697807823. The reversal of 54697807771 is 17770879645.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54697807771 - 2¹⁵ = 54697775003 is a prime.

It is not a weakly prime, because it can be changed into another prime (54697807271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27348903885 + 27348903886.

It is an arithmetic number, because the mean of its divisors is an integer number (27348903886).

Almost surely, 2^54697807771 is an apocalyptic number.

54697807771 is a deficient number, since it is larger than the sum of its proper divisors (1).

54697807771 is an equidigital number, since it uses as much as digits as its factorization.

54697807771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20744640, while the sum is 61.

The spelling of 54697807771 in words is "fifty-four billion, six hundred ninety-seven million, eight hundred seven thousand, seven hundred seventy-one".