45437888491 has 2 divisors, whose sum is σ = 45437888492. Its totient is φ = 45437888490.

The previous prime is 45437888459. The next prime is 45437888513. The reversal of 45437888491 is 19488873454.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45437888491 - 2⁵ = 45437888459 is a prime.

It is not a weakly prime, because it can be changed into another prime (45437888411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22718944245 + 22718944246.

It is an arithmetic number, because the mean of its divisors is an integer number (22718944246).

Almost surely, 2^45437888491 is an apocalyptic number.

45437888491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45437888491 is an equidigital number, since it uses as much as digits as its factorization.

45437888491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30965760, while the sum is 61.

The spelling of 45437888491 in words is "forty-five billion, four hundred thirty-seven million, eight hundred eighty-eight thousand, four hundred ninety-one".