18687006703540 has 24 divisors (see below), whose sum is σ = 44848816088832. Its totient is φ = 6406973726880.

The previous prime is 18687006703499. The next prime is 18687006703553. The reversal of 18687006703540 is 4530760078681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66739309516 + ... + 66739309795.

It is an arithmetic number, because the mean of its divisors is an integer number (1868700670368).

Almost surely, 2^{18687006703540} is an apocalyptic number.

18687006703540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18687006703540 is an abundant number, since it is smaller than the sum of its proper divisors (26161809385292).

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

18687006703540 is a wasteful number, since it uses less digits than its factorization.

18687006703540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133478619327 (or 133478619325 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 18687006703540 in words is "eighteen trillion, six hundred eighty-seven billion, six million, seven hundred three thousand, five hundred forty".