18670735049990 has 32 divisors (see below), whose sum is σ = 35408982076416. Its totient is φ = 7074230375520.

The previous prime is 18670735049977. The next prime is 18670735050043. The reversal of 18670735049990 is 9994053707681.

It is a self number, because there is not a number n which added to its sum of digits gives 18670735049990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394039946 + ... + 394087325.

It is an arithmetic number, because the mean of its divisors is an integer number (1106530689888).

Almost surely, 2^{18670735049990} is an apocalyptic number.

18670735049990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18670735049990 is a deficient number, since it is larger than the sum of its proper divisors (16738247026426).

18670735049990 is a wasteful number, since it uses less digits than its factorization.

18670735049990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788127404.

The product of its (nonzero) digits is 102876480, while the sum is 68.

The spelling of 18670735049990 in words is "eighteen trillion, six hundred seventy billion, seven hundred thirty-five million, forty-nine thousand, nine hundred ninety".