45377446637 has 2 divisors, whose sum is σ = 45377446638. Its totient is φ = 45377446636.

The previous prime is 45377446627. The next prime is 45377446663. The reversal of 45377446637 is 73664477354.

It is a happy number.

45377446637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42540712516 + 2836734121 = 206254^2 + 53261^2 .

It is a cyclic number.

It is not a de Polignac number, because 45377446637 - 2¹⁴ = 45377430253 is a prime.

It is a super-2 number, since 2×45377446637² (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 (45377446607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22688723318 + 22688723319.

It is an arithmetic number, because the mean of its divisors is an integer number (22688723319).

Almost surely, 2^45377446637 is an apocalyptic number.

It is an amenable number.

45377446637 is a deficient number, since it is larger than the sum of its proper divisors (1).

45377446637 is an equidigital number, since it uses as much as digits as its factorization.

45377446637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 56.

The spelling of 45377446637 in words is "forty-five billion, three hundred seventy-seven million, four hundred forty-six thousand, six hundred thirty-seven".