45051982809 has 32 divisors (see below), whose sum is σ = 63432445440. Its totient is φ = 28404172800.

The previous prime is 45051982771. The next prime is 45051982813. The reversal of 45051982809 is 90828915054.

It is not a de Polignac number, because 45051982809 - 2¹⁷ = 45051851737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45051982819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1215057 + ... + 1251585.

It is an arithmetic number, because the mean of its divisors is an integer number (1982263920).

Almost surely, 2^45051982809 is an apocalyptic number.

It is an amenable number.

45051982809 is a deficient number, since it is larger than the sum of its proper divisors (18380462631).

45051982809 is a wasteful number, since it uses less digits than its factorization.

45051982809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36881.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 45051982809 in words is "forty-five billion, fifty-one million, nine hundred eighty-two thousand, eight hundred nine".