45731487643 has 2 divisors, whose sum is σ = 45731487644. Its totient is φ = 45731487642.

The previous prime is 45731487583. The next prime is 45731487691. The reversal of 45731487643 is 34678413754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45731487643 - 2²¹ = 45729390491 is a prime.

It is not a weakly prime, because it can be changed into another prime (45731481643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22865743821 + 22865743822.

It is an arithmetic number, because the mean of its divisors is an integer number (22865743822).

Almost surely, 2^45731487643 is an apocalyptic number.

45731487643 is a deficient number, since it is larger than the sum of its proper divisors (1).

45731487643 is an equidigital number, since it uses as much as digits as its factorization.

45731487643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 52.

The spelling of 45731487643 in words is "forty-five billion, seven hundred thirty-one million, four hundred eighty-seven thousand, six hundred forty-three".