77794626976 has 192 divisors, whose sum is σ = 188926940160. Its totient is φ = 31094784000.

The previous prime is 77794626971. The next prime is 77794626977. The reversal of 77794626976 is 67962649777.

It is not an unprimeable number, because it can be changed into a prime (77794626971) 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, 5372386 + ... + 5386846.

It is an arithmetic number, because the mean of its divisors is an integer number (983994480).

Almost surely, 2^77794626976 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 77794626976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94463470080).

77794626976 is an abundant number, since it is smaller than the sum of its proper divisors (111132313184).

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

77794626976 is a wasteful number, since it uses less digits than its factorization.

77794626976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14559 (or 14551 counting only the distinct ones).

The product of its digits is 336063168, while the sum is 70.

The spelling of 77794626976 in words is "seventy-seven billion, seven hundred ninety-four million, six hundred twenty-six thousand, nine hundred seventy-six".