772841680 has 160 divisors (see below), whose sum is σ = 2008871424. Its totient is φ = 274710528.

The previous prime is 772841659. The next prime is 772841683. The reversal of 772841680 is 86148277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772841683) 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, 4741279 + ... + 4741441.

Almost surely, 2^772841680 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 772841680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1004435712).

772841680 is an abundant number, since it is smaller than the sum of its proper divisors (1236029744).

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

772841680 is a wasteful number, since it uses less digits than its factorization.

772841680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 43.

The square root of 772841680 is about 27800.0302158109. The cubic root of 772841680 is about 917.6917877477.

The spelling of 772841680 in words is "seven hundred seventy-two million, eight hundred forty-one thousand, six hundred eighty".