10787321597 has 24 divisors (see below), whose sum is σ = 11911531128. Its totient is φ = 9710346240.

The previous prime is 10787321591. The next prime is 10787321647. The reversal of 10787321597 is 79512378701.

It can be written as a sum of positive squares in 4 ways, for example, as 2189210521 + 8598111076 = 46789^2 + 92726^2 .

It is not a de Polignac number, because 10787321597 - 2¹⁴ = 10787305213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10787321591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6355853 + ... + 6357549.

It is an arithmetic number, because the mean of its divisors is an integer number (496313797).

Almost surely, 2^10787321597 is an apocalyptic number.

It is an amenable number.

10787321597 is a deficient number, since it is larger than the sum of its proper divisors (1124209531).

10787321597 is an equidigital number, since it uses as much as digits as its factorization.

10787321597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 50.

The spelling of 10787321597 in words is "ten billion, seven hundred eighty-seven million, three hundred twenty-one thousand, five hundred ninety-seven".