45278085509 has 8 divisors (see below), whose sum is σ = 46396627200. Its totient is φ = 44160220000.

The previous prime is 45278085353. The next prime is 45278085511. The reversal of 45278085509 is 90558087254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45278085509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45278081509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32117 + ... + 302634.

It is an arithmetic number, because the mean of its divisors is an integer number (5799578400).

Almost surely, 2^45278085509 is an apocalyptic number.

It is an amenable number.

45278085509 is a deficient number, since it is larger than the sum of its proper divisors (1118541691).

45278085509 is a wasteful number, since it uses less digits than its factorization.

45278085509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338091.

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 45278085509 in words is "forty-five billion, two hundred seventy-eight million, eighty-five thousand, five hundred nine".