45345207631 has 2 divisors, whose sum is σ = 45345207632. Its totient is φ = 45345207630.

The previous prime is 45345207577. The next prime is 45345207647. The reversal of 45345207631 is 13670254354.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45345207631 - 2²¹ = 45343110479 is a prime.

It is a super-2 number, since 2×45345207631² (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 (45345207031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22672603815 + 22672603816.

It is an arithmetic number, because the mean of its divisors is an integer number (22672603816).

Almost surely, 2^45345207631 is an apocalyptic number.

45345207631 is a deficient number, since it is larger than the sum of its proper divisors (1).

45345207631 is an equidigital number, since it uses as much as digits as its factorization.

45345207631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 45345207631 in words is "forty-five billion, three hundred forty-five million, two hundred seven thousand, six hundred thirty-one".