189860262050 has 24 divisors (see below), whose sum is σ = 353209630116. Its totient is φ = 75929149440.

The previous prime is 189860262043. The next prime is 189860262061. The reversal of 189860262050 is 50262068981.

It can be written as a sum of positive squares in 6 ways, for example, as 289714441 + 189570547609 = 17021^2 + 435397^2 .

It is a junction number, because it is equal to n+sod(n) for n = 189860261986 and 189860262004.

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, 115679 + ... + 626978.

Almost surely, 2^189860262050 is an apocalyptic number.

189860262050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

189860262050 is a deficient number, since it is larger than the sum of its proper divisors (163349368066).

189860262050 is a wasteful number, since it uses less digits than its factorization.

189860262050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747782 (or 747777 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 189860262050 in words is "one hundred eighty-nine billion, eight hundred sixty million, two hundred sixty-two thousand, fifty".