18741107570640 has 320 divisors, whose sum is σ = 71553265631232. Its totient is φ = 3951472896000.

The previous prime is 18741107570639. The next prime is 18741107570707. The reversal of 18741107570640 is 4607570114781.

It is a super-2 number, since 2×18741107570640² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31834965 + ... + 32418315.

Almost surely, 2^{18741107570640} is an apocalyptic number.

18741107570640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18741107570640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35776632815616).

18741107570640 is an abundant number, since it is smaller than the sum of its proper divisors (52812158060592).

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

18741107570640 is a wasteful number, since it uses less digits than its factorization.

18741107570640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584858 (or 584852 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 51.

The spelling of 18741107570640 in words is "eighteen trillion, seven hundred forty-one billion, one hundred seven million, five hundred seventy thousand, six hundred forty".