18761748485500 has 48 divisors (see below), whose sum is σ = 40980019298400. Its totient is φ = 7503900748800.

The previous prime is 18761748485497. The next prime is 18761748485509. The reversal of 18761748485500 is 558484716781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18761748485509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2717596 + ... + 6701404.

It is an arithmetic number, because the mean of its divisors is an integer number (853750402050).

Almost surely, 2^{18761748485500} is an apocalyptic number.

18761748485500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18761748485500 is an abundant number, since it is smaller than the sum of its proper divisors (22218270812900).

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

18761748485500 is a wasteful number, since it uses less digits than its factorization.

18761748485500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3993247 (or 3993235 counting only the distinct ones).

The product of its (nonzero) digits is 60211200, while the sum is 64.

The spelling of 18761748485500 in words is "eighteen trillion, seven hundred sixty-one billion, seven hundred forty-eight million, four hundred eighty-five thousand, five hundred".