45051489792 has 400 divisors, whose sum is σ = 142241520960. Its totient is φ = 14173028352.

The previous prime is 45051489781. The next prime is 45051489797. The reversal of 45051489792 is 29798415054.

It is a happy number.

45051489792 is a `hidden beast` number, since 4 + 50 + 514 + 8 + 9 + 79 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45051489797) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56525938 + ... + 56526734.

Almost surely, 2^45051489792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45051489792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71120760480).

45051489792 is an abundant number, since it is smaller than the sum of its proper divisors (97190031168).

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

45051489792 is an equidigital number, since it uses as much as digits as its factorization.

45051489792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 45051489792 in words is "forty-five billion, fifty-one million, four hundred eighty-nine thousand, seven hundred ninety-two".