83774769792 has 256 divisors, whose sum is σ = 256955462400. Its totient is φ = 23688806400.

The previous prime is 83774769787. The next prime is 83774769797. The reversal of 83774769792 is 29796747738.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83774769787) and next prime (83774769797).

It is not an unprimeable number, because it can be changed into a prime (83774769797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198989742 + ... + 198990162.

It is an arithmetic number, because the mean of its divisors is an integer number (1003732275).

Almost surely, 2^83774769792 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 83774769792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128477731200).

83774769792 is an abundant number, since it is smaller than the sum of its proper divisors (173180692608).

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

83774769792 is a wasteful number, since it uses less digits than its factorization.

83774769792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035 (or 1023 counting only the distinct ones).

The product of its digits is 224042112, while the sum is 69.

The spelling of 83774769792 in words is "eighty-three billion, seven hundred seventy-four million, seven hundred sixty-nine thousand, seven hundred ninety-two".