45507578506 has 8 divisors (see below), whose sum is σ = 73512242244. Its totient is φ = 21003497760.

The previous prime is 45507578491. The next prime is 45507578527. The reversal of 45507578506 is 60587570554.

It can be written as a sum of positive squares in 2 ways, for example, as 45230655625 + 276922881 = 212675^2 + 16641^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 875145715 + ... + 875145766.

Almost surely, 2^45507578506 is an apocalyptic number.

45507578506 is a deficient number, since it is larger than the sum of its proper divisors (28004663738).

45507578506 is a wasteful number, since it uses less digits than its factorization.

45507578506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750291496.

The product of its (nonzero) digits is 5880000, while the sum is 52.

The spelling of 45507578506 in words is "forty-five billion, five hundred seven million, five hundred seventy-eight thousand, five hundred six".