118535452397 has 4 divisors (see below), whose sum is σ = 122622881820. Its totient is φ = 114448022976.

The previous prime is 118535452393. The next prime is 118535452411. The reversal of 118535452397 is 793254535811.

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 96727842121 + 21807610276 = 311011^2 + 147674^2 .

It is a cyclic number.

It is not a de Polignac number, because 118535452397 - 2² = 118535452393 is a prime.

It is a super-2 number, since 2×118535452397² (a number of 23 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 (118535452391) 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, 2043714668 + ... + 2043714725.

It is an arithmetic number, because the mean of its divisors is an integer number (30655720455).

Almost surely, 2^118535452397 is an apocalyptic number.

It is an amenable number.

118535452397 is a deficient number, since it is larger than the sum of its proper divisors (4087429423).

118535452397 is an equidigital number, since it uses as much as digits as its factorization.

118535452397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087429422.

The product of its digits is 4536000, while the sum is 53.

The spelling of 118535452397 in words is "one hundred eighteen billion, five hundred thirty-five million, four hundred fifty-two thousand, three hundred ninety-seven".