83839793501 has 4 divisors (see below), whose sum is σ = 83869390332. Its totient is φ = 83810196672.

The previous prime is 83839793497. The next prime is 83839793507. The reversal of 83839793501 is 10539793838.

It is a happy number.

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 35075671225 + 48764122276 = 187285^2 + 220826^2 .

It is a cyclic number.

It is not a de Polignac number, because 83839793501 - 2² = 83839793497 is a prime.

It is a super-2 number, since 2×83839793501² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83839793507) 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, 14794166 + ... + 14799831.

It is an arithmetic number, because the mean of its divisors is an integer number (20967347583).

Almost surely, 2^83839793501 is an apocalyptic number.

It is an amenable number.

83839793501 is a deficient number, since it is larger than the sum of its proper divisors (29596831).

83839793501 is a wasteful number, since it uses less digits than its factorization.

83839793501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29596830.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 83839793501 in words is "eighty-three billion, eight hundred thirty-nine million, seven hundred ninety-three thousand, five hundred one".