76779506826 has 120 divisors (see below), whose sum is σ = 199374189696. Its totient is φ = 21897751680.

The previous prime is 76779506813. The next prime is 76779506827. The reversal of 76779506826 is 62860597767.

It is a super-3 number, since 3×76779506826³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (76779506827) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 440455 + ... + 589541.

Almost surely, 2^76779506826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76779506826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99687094848).

76779506826 is an abundant number, since it is smaller than the sum of its proper divisors (122594682870).

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

76779506826 is a wasteful number, since it uses less digits than its factorization.

76779506826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149146 (or 149120 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 76779506826 in words is "seventy-six billion, seven hundred seventy-nine million, five hundred six thousand, eight hundred twenty-six".