45309773980 has 24 divisors (see below), whose sum is σ = 96710372640. Its totient is φ = 17826795840.

The previous prime is 45309773969. The next prime is 45309774017. The reversal of 45309773980 is 8937790354.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18568360 + ... + 18570799.

It is an arithmetic number, because the mean of its divisors is an integer number (4029598860).

Almost surely, 2^45309773980 is an apocalyptic number.

It is an amenable number.

45309773980 is an abundant number, since it is smaller than the sum of its proper divisors (51400598660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45309773980 is a wasteful number, since it uses less digits than its factorization.

45309773980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37139229 (or 37139227 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The spelling of 45309773980 in words is "forty-five billion, three hundred nine million, seven hundred seventy-three thousand, nine hundred eighty".