54761827649 has 2 divisors, whose sum is σ = 54761827650. Its totient is φ = 54761827648.

The previous prime is 54761827597. The next prime is 54761827657. The reversal of 54761827649 is 94672816745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27929094400 + 26832733249 = 167120^2 + 163807^2 .

It is a cyclic number.

It is not a de Polignac number, because 54761827649 - 2²⁴ = 54745050433 is a prime.

It is not a weakly prime, because it can be changed into another prime (54761827699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27380913824 + 27380913825.

It is an arithmetic number, because the mean of its divisors is an integer number (27380913825).

Almost surely, 2^54761827649 is an apocalyptic number.

It is an amenable number.

54761827649 is a deficient number, since it is larger than the sum of its proper divisors (1).

54761827649 is an equidigital number, since it uses as much as digits as its factorization.

54761827649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 59.

The spelling of 54761827649 in words is "fifty-four billion, seven hundred sixty-one million, eight hundred twenty-seven thousand, six hundred forty-nine".