7779977334 has 12 divisors (see below), whose sum is σ = 16856617596. Its totient is φ = 2593325772.

The previous prime is 7779977333. The next prime is 7779977339. The reversal of 7779977334 is 4337799777.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7779977333) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216110464 + ... + 216110499.

It is an arithmetic number, because the mean of its divisors is an integer number (1404718133).

Almost surely, 2^7779977334 is an apocalyptic number.

7779977334 is an abundant number, since it is smaller than the sum of its proper divisors (9076640262).

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

7779977334 is a wasteful number, since it uses less digits than its factorization.

7779977334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432220971 (or 432220968 counting only the distinct ones).

The product of its digits is 49009212, while the sum is 63.

The square root of 7779977334 is about 88204.1797989188. The cubic root of 7779977334 is about 1981.4940712772.

The spelling of 7779977334 in words is "seven billion, seven hundred seventy-nine million, nine hundred seventy-seven thousand, three hundred thirty-four".