45045991586 has 4 divisors (see below), whose sum is σ = 67568987382. Its totient is φ = 22522995792.

The previous prime is 45045991513. The next prime is 45045991609. The reversal of 45045991586 is 68519954054.

45045991586 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37166056225 + 7879935361 = 192785^2 + 88769^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11261497895 + ... + 11261497898.

Almost surely, 2^45045991586 is an apocalyptic number.

45045991586 is a deficient number, since it is larger than the sum of its proper divisors (22522995796).

45045991586 is a wasteful number, since it uses less digits than its factorization.

45045991586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22522995795.

The product of its (nonzero) digits is 7776000, while the sum is 56.

The spelling of 45045991586 in words is "forty-five billion, forty-five million, nine hundred ninety-one thousand, five hundred eighty-six".