45040205437 has 2 divisors, whose sum is σ = 45040205438. Its totient is φ = 45040205436.

The previous prime is 45040205417. The next prime is 45040205459. The reversal of 45040205437 is 73450204054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28694327236 + 16345878201 = 169394^2 + 127851^2 .

It is a cyclic number.

It is not a de Polignac number, because 45040205437 - 2²³ = 45031816829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45040205417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520102718 + 22520102719.

It is an arithmetic number, because the mean of its divisors is an integer number (22520102719).

Almost surely, 2^45040205437 is an apocalyptic number.

It is an amenable number.

45040205437 is a deficient number, since it is larger than the sum of its proper divisors (1).

45040205437 is an equidigital number, since it uses as much as digits as its factorization.

45040205437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 34.

The spelling of 45040205437 in words is "forty-five billion, forty million, two hundred five thousand, four hundred thirty-seven".