45021747204045 has 24 divisors (see below), whose sum is σ = 78046262962200. Its totient is φ = 24008962260096.

The previous prime is 45021747203959. The next prime is 45021747204053. The reversal of 45021747204045 is 54040274712054.

45021747204045 is a `hidden beast` number, since 4 + 5 + 0 + 2 + 174 + 72 + 0 + 404 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 195856698249 + 44825890505796 = 442557^2 + 6695214^2 .

It is not a de Polignac number, because 45021747204045 - 2²⁹ = 45021210333133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54507390 + ... + 55327199.

It is an arithmetic number, because the mean of its divisors is an integer number (3251927623425).

Almost surely, 2^{45021747204045} is an apocalyptic number.

45021747204045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45021747204045 is a deficient number, since it is larger than the sum of its proper divisors (33024515758155).

45021747204045 is a wasteful number, since it uses less digits than its factorization.

45021747204045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109843709 (or 109843706 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 45.

The spelling of 45021747204045 in words is "forty-five trillion, twenty-one billion, seven hundred forty-seven million, two hundred four thousand, forty-five".