76776770382 has 64 divisors (see below), whose sum is σ = 171404964864. Its totient is φ = 22775829120.

The previous prime is 76776770381. The next prime is 76776770393. The reversal of 76776770382 is 28307767767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76776770381) 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, 89332 + ... + 401912.

It is an arithmetic number, because the mean of its divisors is an integer number (2678202576).

Almost surely, 2^76776770382 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76776770382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85702482432).

76776770382 is an abundant number, since it is smaller than the sum of its proper divisors (94628194482).

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

76776770382 is a wasteful number, since it uses less digits than its factorization.

76776770382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312713.

The product of its (nonzero) digits is 29042496, while the sum is 60.

The spelling of 76776770382 in words is "seventy-six billion, seven hundred seventy-six million, seven hundred seventy thousand, three hundred eighty-two".