45218210090 has 8 divisors (see below), whose sum is σ = 81392778180. Its totient is φ = 18087284032.

The previous prime is 45218210077. The next prime is 45218210123. The reversal of 45218210090 is 9001281254.

It can be written as a sum of positive squares in 2 ways, for example, as 43714864561 + 1503345529 = 209081^2 + 38773^2 .

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

It is a Curzon number.

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, 2260910495 + ... + 2260910514.

Almost surely, 2^45218210090 is an apocalyptic number.

45218210090 is a deficient number, since it is larger than the sum of its proper divisors (36174568090).

45218210090 is a wasteful number, since it uses less digits than its factorization.

45218210090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521821016.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 45218210090 in words is "forty-five billion, two hundred eighteen million, two hundred ten thousand, ninety".