1045115187500 has 84 divisors (see below), whose sum is σ = 2406487165320. Its totient is φ = 396043200000.

The previous prime is 1045115187499. The next prime is 1045115187511. The reversal of 1045115187500 is 57815115401.

It is a happy number.

1045115187500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 747452 + ... + 1627548.

It is an arithmetic number, because the mean of its divisors is an integer number (28648656730).

Almost surely, 2^{1045115187500} is an apocalyptic number.

1045115187500 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 1045115187500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203243582660).

1045115187500 is an abundant number, since it is smaller than the sum of its proper divisors (1361371977820).

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

1045115187500 is an frugal number, since it uses more digits than its factorization.

1045115187500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880150 (or 880123 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 38.

The spelling of 1045115187500 in words is "one trillion, forty-five billion, one hundred fifteen million, one hundred eighty-seven thousand, five hundred".