10591227380 has 36 divisors (see below), whose sum is σ = 23473813860. Its totient is φ = 4013515008.

The previous prime is 10591227377. The next prime is 10591227403. The reversal of 10591227380 is 8372219501.

It can be written as a sum of positive squares in 2 ways, for example, as 6289441636 + 4301785744 = 79306^2 + 65588^2 .

It is a super-2 number, since 2×10591227380² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726245 + ... + 740684.

It is an arithmetic number, because the mean of its divisors is an integer number (652050385).

Almost surely, 2^10591227380 is an apocalyptic number.

10591227380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10591227380 is an abundant number, since it is smaller than the sum of its proper divisors (12882586480).

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

10591227380 is a wasteful number, since it uses less digits than its factorization.

10591227380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466976 (or 1466955 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 10591227380 in words is "ten billion, five hundred ninety-one million, two hundred twenty-seven thousand, three hundred eighty".