45215403623 has 6 divisors (see below), whose sum is σ = 48961058544. Its totient is φ = 41737295496.

The previous prime is 45215403613. The next prime is 45215403637. The reversal of 45215403623 is 32630451254.

It is a de Polignac number, because none of the positive numbers 2^k-45215403623 is a prime.

It is a super-2 number, since 2×45215403623² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215403613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133773215 + ... + 133773552.

It is an arithmetic number, because the mean of its divisors is an integer number (8160176424).

Almost surely, 2^45215403623 is an apocalyptic number.

45215403623 is a deficient number, since it is larger than the sum of its proper divisors (3745654921).

45215403623 is a wasteful number, since it uses less digits than its factorization.

45215403623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267546793 (or 267546780 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 45215403623 its reverse (32630451254), we get a palindrome (77845854877).

The spelling of 45215403623 in words is "forty-five billion, two hundred fifteen million, four hundred three thousand, six hundred twenty-three".