45142220639 has 2 divisors, whose sum is σ = 45142220640. Its totient is φ = 45142220638.

The previous prime is 45142220633. The next prime is 45142220653. The reversal of 45142220639 is 93602224154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45142220639 - 2²⁸ = 44873785183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45142220633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22571110319 + 22571110320.

It is an arithmetic number, because the mean of its divisors is an integer number (22571110320).

Almost surely, 2^45142220639 is an apocalyptic number.

45142220639 is a deficient number, since it is larger than the sum of its proper divisors (1).

45142220639 is an equidigital number, since it uses as much as digits as its factorization.

45142220639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 45142220639 in words is "forty-five billion, one hundred forty-two million, two hundred twenty thousand, six hundred thirty-nine".