45491692280 has 32 divisors (see below), whose sum is σ = 102384885600. Its totient is φ = 18191596416.

The previous prime is 45491692277. The next prime is 45491692313. The reversal of 45491692280 is 8229619454.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

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, 12035 + ... + 301874.

It is an arithmetic number, because the mean of its divisors is an integer number (3199527675).

Almost surely, 2^45491692280 is an apocalyptic number.

45491692280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45491692280 is an abundant number, since it is smaller than the sum of its proper divisors (56893193320).

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

45491692280 is a wasteful number, since it uses less digits than its factorization.

45491692280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317543 (or 317539 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 45491692280 in words is "forty-five billion, four hundred ninety-one million, six hundred ninety-two thousand, two hundred eighty".