83623943451 has 4 divisors (see below), whose sum is σ = 111498591272. Its totient is φ = 55749295632.

The previous prime is 83623943419. The next prime is 83623943461. The reversal of 83623943451 is 15434932638.

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

It is not a de Polignac number, because 83623943451 - 2⁵ = 83623943419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83623943451.

It is not an unprimeable number, because it can be changed into a prime (83623943411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13937323906 + ... + 13937323911.

It is an arithmetic number, because the mean of its divisors is an integer number (27874647818).

Almost surely, 2^83623943451 is an apocalyptic number.

83623943451 is a deficient number, since it is larger than the sum of its proper divisors (27874647821).

83623943451 is a wasteful number, since it uses less digits than its factorization.

83623943451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27874647820.

The product of its digits is 1866240, while the sum is 48.

The spelling of 83623943451 in words is "eighty-three billion, six hundred twenty-three million, nine hundred forty-three thousand, four hundred fifty-one".