18374728191010 has 8 divisors (see below), whose sum is σ = 33074510743836. Its totient is φ = 7349891276400.

The previous prime is 18374728190869. The next prime is 18374728191013. The reversal of 18374728191010 is 1019182747381.

It can be written as a sum of positive squares in 2 ways, for example, as 16924724477089 + 1450003713921 = 4113967^2 + 1204161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18374728191013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918736409541 + ... + 918736409560.

Almost surely, 2^{18374728191010} is an apocalyptic number.

18374728191010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18374728191010 is a deficient number, since it is larger than the sum of its proper divisors (14699782552826).

18374728191010 is a wasteful number, since it uses less digits than its factorization.

18374728191010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837472819108.

The product of its (nonzero) digits is 677376, while the sum is 52.

The spelling of 18374728191010 in words is "eighteen trillion, three hundred seventy-four billion, seven hundred twenty-eight million, one hundred ninety-one thousand, ten".