5181922850 has 24 divisors (see below), whose sum is σ = 10379791380. Its totient is φ = 1913325120.

The previous prime is 5181922849. The next prime is 5181922873. The reversal of 5181922850 is 582291815.

It can be written as a sum of positive squares in 6 ways, for example, as 82391929 + 5099530921 = 9077^2 + 71411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5181922798 and 5181922807.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3985445 + ... + 3986744.

Almost surely, 2^5181922850 is an apocalyptic number.

5181922850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5181922850 is an abundant number, since it is smaller than the sum of its proper divisors (5197868530).

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

5181922850 is a wasteful number, since it uses less digits than its factorization.

5181922850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972214 (or 7972209 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 5181922850 is about 71985.5739019979. The cubic root of 5181922850 is about 1730.4682984967.

The spelling of 5181922850 in words is "five billion, one hundred eighty-one million, nine hundred twenty-two thousand, eight hundred fifty".