10212047838 has 64 divisors (see below), whose sum is σ = 24658483200. Its totient is φ = 3120819840.

The previous prime is 10212047837. The next prime is 10212047851. The reversal of 10212047838 is 83874021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212047837) 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, 128731 + ... + 192342.

It is an arithmetic number, because the mean of its divisors is an integer number (385288800).

Almost surely, 2^10212047838 is an apocalyptic number.

10212047838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10212047838 is an abundant number, since it is smaller than the sum of its proper divisors (14446435362).

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

10212047838 is a wasteful number, since it uses less digits than its factorization.

10212047838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321134 (or 321128 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 10212047838 in words is "ten billion, two hundred twelve million, forty-seven thousand, eight hundred thirty-eight".