45227798691840 has 1056 divisors, whose sum is σ = 166582414342656. Its totient is φ = 11327640698880.

The previous prime is 45227798691781. The next prime is 45227798691961. The reversal of 45227798691840 is 4819689772254.

It is a happy number.

45227798691840 is a `hidden beast` number, since 4 + 522 + 7 + 7 + 9 + 8 + 6 + 91 + 8 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 145427005285 + ... + 145427005595.

Almost surely, 2^{45227798691840} is an apocalyptic number.

45227798691840 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 45227798691840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83291207171328).

45227798691840 is an abundant number, since it is smaller than the sum of its proper divisors (121354615650816).

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

45227798691840 is an frugal number, since it uses more digits than its factorization.

45227798691840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 411 counting only the distinct ones).

The product of its (nonzero) digits is 487710720, while the sum is 72.

The spelling of 45227798691840 in words is "forty-five trillion, two hundred twenty-seven billion, seven hundred ninety-eight million, six hundred ninety-one thousand, eight hundred forty".