1185026010920 has 128 divisors (see below), whose sum is σ = 2847989548800. Its totient is φ = 442693515264.

The previous prime is 1185026010887. The next prime is 1185026011051. The reversal of 1185026010920 is 290106205811.

It is a Cunningham number, because it is equal to 1088589²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 187234316 + ... + 187240644.

It is an arithmetic number, because the mean of its divisors is an integer number (22249918350).

Almost surely, 2^{1185026010920} is an apocalyptic number.

1185026010920 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 1185026010920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1423994774400).

1185026010920 is an abundant number, since it is smaller than the sum of its proper divisors (1662963537880).

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

1185026010920 is a wasteful number, since it uses less digits than its factorization.

1185026010920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11139 (or 11135 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 1185026010920 in words is "one trillion, one hundred eighty-five billion, twenty-six million, ten thousand, nine hundred twenty".