10591387500 has 216 divisors, whose sum is σ = 31909426416. Its totient is φ = 2733120000.

The previous prime is 10591387463. The next prime is 10591387501. The reversal of 10591387500 is 578319501.

It is a super-2 number, since 2×10591387500² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10591387501) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 145087464 + ... + 145087536.

It is an arithmetic number, because the mean of its divisors is an integer number (147728826).

Almost surely, 2^10591387500 is an apocalyptic number.

10591387500 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 10591387500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15954713208).

10591387500 is an abundant number, since it is smaller than the sum of its proper divisors (21318038916).

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

10591387500 is an frugal number, since it uses more digits than its factorization.

10591387500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 10591387500 in words is "ten billion, five hundred ninety-one million, three hundred eighty-seven thousand, five hundred".