83977873752 has 64 divisors (see below), whose sum is σ = 214049537280. Its totient is φ = 27446020992.

The previous prime is 83977873751. The next prime is 83977873753. The reversal of 83977873752 is 25737877938.

It is an interprime number because it is at equal distance from previous prime (83977873751) and next prime (83977873753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83977873751) 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, 1941303 + ... + 1984089.

It is an arithmetic number, because the mean of its divisors is an integer number (3344524020).

Almost surely, 2^83977873752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83977873752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107024768640).

83977873752 is an abundant number, since it is smaller than the sum of its proper divisors (130071663528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83977873752 is a wasteful number, since it uses less digits than its factorization.

83977873752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44392 (or 44388 counting only the distinct ones).

The product of its digits is 124467840, while the sum is 66.

The spelling of 83977873752 in words is "eighty-three billion, nine hundred seventy-seven million, eight hundred seventy-three thousand, seven hundred fifty-two".