45591382861 has 2 divisors, whose sum is σ = 45591382862. Its totient is φ = 45591382860.

The previous prime is 45591382853. The next prime is 45591382939. The reversal of 45591382861 is 16828319554.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38179206025 + 7412176836 = 195395^2 + 86094^2 .

It is a cyclic number.

It is not a de Polignac number, because 45591382861 - 2³ = 45591382853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45591382799 and 45591382808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45591382801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22795691430 + 22795691431.

It is an arithmetic number, because the mean of its divisors is an integer number (22795691431).

Almost surely, 2^45591382861 is an apocalyptic number.

It is an amenable number.

45591382861 is a deficient number, since it is larger than the sum of its proper divisors (1).

45591382861 is an equidigital number, since it uses as much as digits as its factorization.

45591382861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 52.

The spelling of 45591382861 in words is "forty-five billion, five hundred ninety-one million, three hundred eighty-two thousand, eight hundred sixty-one".