83351193511 has 4 divisors (see below), whose sum is σ = 88254204912. Its totient is φ = 78448182112.

The previous prime is 83351193493. The next prime is 83351193547. The reversal of 83351193511 is 11539115338.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83351193511 - 2¹⁹ = 83350669223 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83351193311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2451505675 + ... + 2451505708.

It is an arithmetic number, because the mean of its divisors is an integer number (22063551228).

Almost surely, 2^83351193511 is an apocalyptic number.

83351193511 is a deficient number, since it is larger than the sum of its proper divisors (4903011401).

83351193511 is a wasteful number, since it uses less digits than its factorization.

83351193511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903011400.

The product of its digits is 48600, while the sum is 40.

The spelling of 83351193511 in words is "eighty-three billion, three hundred fifty-one million, one hundred ninety-three thousand, five hundred eleven".