45454445437 has 2 divisors, whose sum is σ = 45454445438. Its totient is φ = 45454445436.

The previous prime is 45454445431. The next prime is 45454445489. The reversal of 45454445437 is 73454445454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41624568441 + 3829876996 = 204021^2 + 61886^2 .

It is a cyclic number.

It is not a de Polignac number, because 45454445437 - 2²³ = 45446056829 is a prime.

It is a super-2 number, since 2×45454445437² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45454445431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22727222718 + 22727222719.

It is an arithmetic number, because the mean of its divisors is an integer number (22727222719).

Almost surely, 2^45454445437 is an apocalyptic number.

It is an amenable number.

45454445437 is a deficient number, since it is larger than the sum of its proper divisors (1).

45454445437 is an equidigital number, since it uses as much as digits as its factorization.

45454445437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752000, while the sum is 49.

The spelling of 45454445437 in words is "forty-five billion, four hundred fifty-four million, four hundred forty-five thousand, four hundred thirty-seven".