45445512450 has 48 divisors (see below), whose sum is σ = 121374481536. Its totient is φ = 11186587200.

The previous prime is 45445512433. The next prime is 45445512451. The reversal of 45445512450 is 5421554454.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 45445512399 and 45445512408.

It is not an unprimeable number, because it can be changed into a prime (45445512451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11650746 + ... + 11654645.

It is an arithmetic number, because the mean of its divisors is an integer number (2528635032).

Almost surely, 2^45445512450 is an apocalyptic number.

45445512450 is an abundant number, since it is smaller than the sum of its proper divisors (75928969086).

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

45445512450 is a wasteful number, since it uses less digits than its factorization.

45445512450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23305419 (or 23305414 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 39.

The spelling of 45445512450 in words is "forty-five billion, four hundred forty-five million, five hundred twelve thousand, four hundred fifty".