1445255788100 has 72 divisors (see below), whose sum is σ = 3170191886400. Its totient is φ = 571871076480.

The previous prime is 1445255788073. The next prime is 1445255788169. The reversal of 1445255788100 is 18875525441.

It is a super-2 number, since 2×1445255788100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3232799 + ... + 3652601.

Almost surely, 2^{1445255788100} is an apocalyptic number.

1445255788100 is a gapful number since it is divisible by the number (10) 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 1445255788100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1585095943200).

1445255788100 is an abundant number, since it is smaller than the sum of its proper divisors (1724936098300).

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

1445255788100 is a wasteful number, since it uses less digits than its factorization.

1445255788100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420189 (or 420182 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 50.

The spelling of 1445255788100 in words is "one trillion, four hundred forty-five billion, two hundred fifty-five million, seven hundred eighty-eight thousand, one hundred".