116819621393 has 4 divisors (see below), whose sum is σ = 116944296420. Its totient is φ = 116694946368.

The previous prime is 116819621353. The next prime is 116819621431. The reversal of 116819621393 is 393126918611.

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 16066069504 + 100753551889 = 126752^2 + 317417^2 .

It is a cyclic number.

It is not a de Polignac number, because 116819621393 - 2¹² = 116819617297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116819621323) 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, 62336108 + ... + 62337981.

It is an arithmetic number, because the mean of its divisors is an integer number (29236074105).

Almost surely, 2^116819621393 is an apocalyptic number.

It is an amenable number.

116819621393 is a deficient number, since it is larger than the sum of its proper divisors (124675027).

116819621393 is an equidigital number, since it uses as much as digits as its factorization.

116819621393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124675026.

The product of its digits is 419904, while the sum is 50.

The spelling of 116819621393 in words is "one hundred sixteen billion, eight hundred nineteen million, six hundred twenty-one thousand, three hundred ninety-three".