45731023280 has 40 divisors (see below), whose sum is σ = 110947443552. Its totient is φ = 17497086464.

The previous prime is 45731023279. The next prime is 45731023313. The reversal of 45731023280 is 8232013754.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 45731023280.

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, 12425069 + ... + 12428748.

Almost surely, 2^45731023280 is an apocalyptic number.

45731023280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45731023280 is an abundant number, since it is smaller than the sum of its proper divisors (65216420272).

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

45731023280 is a wasteful number, since it uses less digits than its factorization.

45731023280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24853853 (or 24853847 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 45731023280 in words is "forty-five billion, seven hundred thirty-one million, twenty-three thousand, two hundred eighty".