45546209280 has 912 divisors, whose sum is σ = 192367191744. Its totient is φ = 10192158720.

The previous prime is 45546209237. The next prime is 45546209299. The reversal of 45546209280 is 8290264554.

45546209280 is a `hidden beast` number, since 4 + 5 + 546 + 20 + 9 + 2 + 80 = 666.

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 47 ways as a sum of consecutive naturals, for example, 3503554554 + ... + 3503554566.

Almost surely, 2^45546209280 is an apocalyptic number.

45546209280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45546209280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96183595872).

45546209280 is an abundant number, since it is smaller than the sum of its proper divisors (146820982464).

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

45546209280 is an frugal number, since it uses more digits than its factorization.

45546209280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 45546209280 in words is "forty-five billion, five hundred forty-six million, two hundred nine thousand, two hundred eighty".