913611405497 has 4 divisors (see below), whose sum is σ = 1044127320576. Its totient is φ = 783095490420.

The previous prime is 913611405481. The next prime is 913611405527. The reversal of 913611405497 is 794504116319.

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, and also an emirpimes, since its reverse is a distinct semiprime: 794504116319 = 887 ⋅895720537.

It is a cyclic number.

It is not a de Polignac number, because 913611405497 - 2⁴ = 913611405481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913611405407) 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, 65257957529 + ... + 65257957542.

It is an arithmetic number, because the mean of its divisors is an integer number (261031830144).

Almost surely, 2^913611405497 is an apocalyptic number.

It is an amenable number.

913611405497 is a deficient number, since it is larger than the sum of its proper divisors (130515915079).

913611405497 is a wasteful number, since it uses less digits than its factorization.

913611405497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130515915078.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 913611405497 in words is "nine hundred thirteen billion, six hundred eleven million, four hundred five thousand, four hundred ninety-seven".