11514552397 has 4 divisors (see below), whose sum is σ = 11686411456. Its totient is φ = 11342693340.

The previous prime is 11514552383. The next prime is 11514552407. The reversal of 11514552397 is 79325541511.

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-11514552397 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 (11514552097) 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, 85929429 + ... + 85929562.

It is an arithmetic number, because the mean of its divisors is an integer number (2921602864).

Almost surely, 2^11514552397 is an apocalyptic number.

It is an amenable number.

11514552397 is a deficient number, since it is larger than the sum of its proper divisors (171859059).

11514552397 is an equidigital number, since it uses as much as digits as its factorization.

11514552397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171859058.

The product of its digits is 189000, while the sum is 43.

The spelling of 11514552397 in words is "eleven billion, five hundred fourteen million, five hundred fifty-two thousand, three hundred ninety-seven".