45056136509 has 4 divisors (see below), whose sum is σ = 45074461920. Its totient is φ = 45037811100.

The previous prime is 45056136481. The next prime is 45056136539. The reversal of 45056136509 is 90563165054.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90563165054 = 2 ⋅45281582527.

It is a cyclic number.

It is not a de Polignac number, because 45056136509 - 2¹² = 45056132413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45056136509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45056136539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9159017 + ... + 9163934.

It is an arithmetic number, because the mean of its divisors is an integer number (11268615480).

Almost surely, 2^45056136509 is an apocalyptic number.

It is an amenable number.

45056136509 is a deficient number, since it is larger than the sum of its proper divisors (18325411).

45056136509 is a wasteful number, since it uses less digits than its factorization.

45056136509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18325410.

The product of its (nonzero) digits is 486000, while the sum is 44.

The spelling of 45056136509 in words is "forty-five billion, fifty-six million, one hundred thirty-six thousand, five hundred nine".