45425681280 has 672 divisors, whose sum is σ = 189497213640. Its totient is φ = 10377787392.

The previous prime is 45425681269. The next prime is 45425681291. The reversal of 45425681280 is 8218652454.

45425681280 is a `hidden beast` number, since 4 + 5 + 4 + 2 + 568 + 1 + 2 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (45425681269) and next prime (45425681291).

It is a tau number, because it is divible by the number of its divisors (672).

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 83 ways as a sum of consecutive naturals, for example, 22860447 + ... + 22862433.

Almost surely, 2^45425681280 is an apocalyptic number.

45425681280 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 45425681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94748606820).

45425681280 is an abundant number, since it is smaller than the sum of its proper divisors (144071532360).

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

45425681280 is an equidigital number, since it uses as much as digits as its factorization.

45425681280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 45425681280 in words is "forty-five billion, four hundred twenty-five million, six hundred eighty-one thousand, two hundred eighty".