20741788001540 has 48 divisors (see below), whose sum is σ = 44096176656000. Its totient is φ = 8194767305472.

The previous prime is 20741788001491. The next prime is 20741788001573. The reversal of 20741788001540 is 4510088714702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18474830 + ... + 19565349.

It is an arithmetic number, because the mean of its divisors is an integer number (918670347000).

Almost surely, 2^{20741788001540} is an apocalyptic number.

20741788001540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20741788001540 is an abundant number, since it is smaller than the sum of its proper divisors (23354388654460).

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

20741788001540 is a wasteful number, since it uses less digits than its factorization.

20741788001540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38040524 (or 38040522 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 47.

The spelling of 20741788001540 in words is "twenty trillion, seven hundred forty-one billion, seven hundred eighty-eight million, one thousand, five hundred forty".