45199821465 has 12 divisors (see below), whose sum is σ = 78346357284. Its totient is φ = 24106571424.

The previous prime is 45199821461. The next prime is 45199821473. The reversal of 45199821465 is 56412899154.

45199821465 is a `hidden beast` number, since 4 + 519 + 9 + 82 + 1 + 46 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6089617296 + 39110204169 = 78036^2 + 197763^2 .

It is not a de Polignac number, because 45199821465 - 2² = 45199821461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45199821461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 502220194 + ... + 502220283.

It is an arithmetic number, because the mean of its divisors is an integer number (6528863107).

Almost surely, 2^45199821465 is an apocalyptic number.

45199821465 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45199821465 is a deficient number, since it is larger than the sum of its proper divisors (33146535819).

45199821465 is a wasteful number, since it uses less digits than its factorization.

45199821465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004440488 (or 1004440485 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 45199821465 in words is "forty-five billion, one hundred ninety-nine million, eight hundred twenty-one thousand, four hundred sixty-five".