9778000050 has 480 divisors, whose sum is σ = 34271056512. Its totient is φ = 2011806720.

The previous prime is 9778000021. The next prime is 9778000061. The reversal of 9778000050 is 500008779.

It is a junction number, because it is equal to n+sod(n) for n = 9777999969 and 9778000014.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 15847342 + ... + 15847958.

Almost surely, 2^9778000050 is an apocalyptic number.

9778000050 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9778000050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17135528256).

9778000050 is an abundant number, since it is smaller than the sum of its proper divisors (24493056462).

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

9778000050 is a wasteful number, since it uses less digits than its factorization.

9778000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 690 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 9778000050 is about 98883.7704074840. The cubic root of 9778000050 is about 2138.3724231877.

The spelling of 9778000050 in words is "nine billion, seven hundred seventy-eight million, fifty", and thus it is an aban number.