10591197437 has 4 divisors (see below), whose sum is σ = 10614786300. Its totient is φ = 10567608576.

The previous prime is 10591197433. The next prime is 10591197451. The reversal of 10591197437 is 73479119501.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8774818276 + 1816379161 = 93674^2 + 42619^2 .

It is a cyclic number.

It is not a de Polignac number, because 10591197437 - 2² = 10591197433 is a prime.

It is a super-2 number, since 2×10591197437² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10591197391 and 10591197400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10591197433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11793758 + ... + 11794655.

It is an arithmetic number, because the mean of its divisors is an integer number (2653696575).

Almost surely, 2^10591197437 is an apocalyptic number.

It is an amenable number.

10591197437 is a deficient number, since it is larger than the sum of its proper divisors (23588863).

10591197437 is an equidigital number, since it uses as much as digits as its factorization.

10591197437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588862.

The product of its (nonzero) digits is 238140, while the sum is 47.

The spelling of 10591197437 in words is "ten billion, five hundred ninety-one million, one hundred ninety-seven thousand, four hundred thirty-seven".