772447226880 has 528 divisors, whose sum is σ = 2966790398976. Its totient is φ = 170858741760.

The previous prime is 772447226879. The next prime is 772447226951. The reversal of 772447226880 is 88622744277.

It is a self number, because there is not a number n which added to its sum of digits gives 772447226880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23315287 + ... + 23348393.

Almost surely, 2^772447226880 is an apocalyptic number.

772447226880 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 772447226880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1483395199488).

772447226880 is an abundant number, since it is smaller than the sum of its proper divisors (2194343172096).

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

772447226880 is a wasteful number, since it uses less digits than its factorization.

772447226880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33180 (or 33155 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 57.

The spelling of 772447226880 in words is "seven hundred seventy-two billion, four hundred forty-seven million, two hundred twenty-six thousand, eight hundred eighty".