20135741402547 has 12 divisors (see below), whose sum is σ = 29086422426360. Its totient is φ = 13423152545088.

The previous prime is 20135741402531. The next prime is 20135741402549. The reversal of 20135741402547 is 74520414753102.

20135741402547 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 574 + 14 + 0 + 25 + 47 = 666.

It is not a de Polignac number, because 20135741402547 - 2⁴ = 20135741402531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20135741402549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56065773 + ... + 56423774.

It is an arithmetic number, because the mean of its divisors is an integer number (2423868535530).

Almost surely, 2^{20135741402547} is an apocalyptic number.

20135741402547 is a deficient number, since it is larger than the sum of its proper divisors (8950681023813).

20135741402547 is a wasteful number, since it uses less digits than its factorization.

20135741402547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112509442 (or 112509439 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 45.

The spelling of 20135741402547 in words is "twenty trillion, one hundred thirty-five billion, seven hundred forty-one million, four hundred two thousand, five hundred forty-seven".