18741923050 has 12 divisors (see below), whose sum is σ = 34859976966. Its totient is φ = 7496769200.

The previous prime is 18741923041. The next prime is 18741923059. The reversal of 18741923050 is 5032914781.

It is an interprime number because it is at equal distance from previous prime (18741923041) and next prime (18741923059).

It can be written as a sum of positive squares in 3 ways, for example, as 14905235569 + 3836687481 = 122087^2 + 61941^2 .

It is a super-2 number, since 2×18741923050² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18741922994 and 18741923012.

It is not an unprimeable number, because it can be changed into a prime (18741923059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 187419181 + ... + 187419280.

Almost surely, 2^18741923050 is an apocalyptic number.

18741923050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18741923050 is a deficient number, since it is larger than the sum of its proper divisors (16118053916).

18741923050 is a wasteful number, since it uses less digits than its factorization.

18741923050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374838473 (or 374838468 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 18741923050 in words is "eighteen billion, seven hundred forty-one million, nine hundred twenty-three thousand, fifty".