8611497613 has 4 divisors (see below), whose sum is σ = 8677234368. Its totient is φ = 8545760860.

The previous prime is 8611497553. The next prime is 8611497617. The reversal of 8611497613 is 3167941168.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8611497613 is a prime.

It is a super-2 number, since 2×8611497613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8611497617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32868181 + ... + 32868442.

It is an arithmetic number, because the mean of its divisors is an integer number (2169308592).

Almost surely, 2^8611497613 is an apocalyptic number.

It is an amenable number.

8611497613 is a deficient number, since it is larger than the sum of its proper divisors (65736755).

8611497613 is a wasteful number, since it uses less digits than its factorization.

8611497613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65736754.

The product of its digits is 217728, while the sum is 46.

The square root of 8611497613 is about 92798.1552241207. The cubic root of 8611497613 is about 2049.7122430124.

The spelling of 8611497613 in words is "eight billion, six hundred eleven million, four hundred ninety-seven thousand, six hundred thirteen".