7877399050 has 144 divisors (see below), whose sum is σ = 16263747000. Its totient is φ = 2834496000.

The previous prime is 7877399039. The next prime is 7877399051. The reversal of 7877399050 is 509937787.

It can be written as a sum of positive squares in 12 ways, for example, as 866183761 + 7011215289 = 29431^2 + 83733^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7877398982 and 7877399000.

It is not an unprimeable number, because it can be changed into a prime (7877399051) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 52868376 + ... + 52868524.

Almost surely, 2^7877399050 is an apocalyptic number.

7877399050 is an abundant number, since it is smaller than the sum of its proper divisors (8386347950).

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

7877399050 is a wasteful number, since it uses less digits than its factorization.

7877399050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 3333960, while the sum is 55.

The square root of 7877399050 is about 88754.7128326153. The cubic root of 7877399050 is about 1989.7306142761.

The spelling of 7877399050 in words is "seven billion, eight hundred seventy-seven million, three hundred ninety-nine thousand, fifty".