45772780897 has 2 divisors, whose sum is σ = 45772780898. Its totient is φ = 45772780896.

The previous prime is 45772780853. The next prime is 45772780903. The reversal of 45772780897 is 79808727754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45151575121 + 621205776 = 212489^2 + 24924^2 .

It is a cyclic number.

It is not a de Polignac number, because 45772780897 - 2¹⁵ = 45772748129 is a prime.

It is not a weakly prime, because it can be changed into another prime (45772720897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22886390448 + 22886390449.

It is an arithmetic number, because the mean of its divisors is an integer number (22886390449).

Almost surely, 2^45772780897 is an apocalyptic number.

It is an amenable number.

45772780897 is a deficient number, since it is larger than the sum of its proper divisors (1).

45772780897 is an equidigital number, since it uses as much as digits as its factorization.

45772780897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55319040, while the sum is 64.

The spelling of 45772780897 in words is "forty-five billion, seven hundred seventy-two million, seven hundred eighty thousand, eight hundred ninety-seven".