83943710913 has 16 divisors (see below), whose sum is σ = 113312195136. Its totient is φ = 55269312000.

The previous prime is 83943710911. The next prime is 83943710947. The reversal of 83943710913 is 31901734938.

It is a happy number.

It is not a de Polignac number, because 83943710913 - 2¹ = 83943710911 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (83943710911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691081 + ... + 803417.

It is an arithmetic number, because the mean of its divisors is an integer number (7082012196).

Almost surely, 2^83943710913 is an apocalyptic number.

83943710913 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

83943710913 is a deficient number, since it is larger than the sum of its proper divisors (29368484223).

83943710913 is a wasteful number, since it uses less digits than its factorization.

83943710913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115424.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 83943710913 in words is "eighty-three billion, nine hundred forty-three million, seven hundred ten thousand, nine hundred thirteen".