769622616 has 216 divisors, whose sum is σ = 2516480460. Its totient is φ = 211861440.

The previous prime is 769622611. The next prime is 769622629. The reversal of 769622616 is 616226967.

769622616 is a `hidden beast` number, since 7 + 6 + 9 + 6 + 22 + 616 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769622611) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 3390295 + ... + 3390521.

Almost surely, 2^769622616 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 769622616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1258240230).

769622616 is an abundant number, since it is smaller than the sum of its proper divisors (1746857844).

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

769622616 is a wasteful number, since it uses less digits than its factorization.

769622616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 270 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 769622616 is about 27742.0730299666. The cubic root of 769622616 is about 916.4158819118.

The spelling of 769622616 in words is "seven hundred sixty-nine million, six hundred twenty-two thousand, six hundred sixteen".