20135630513775 has 36 divisors (see below), whose sum is σ = 38726159591112. Its totient is φ = 9204859661760.

The previous prime is 20135630513729. The next prime is 20135630513777. The reversal of 20135630513775 is 57731503653102.

It is not a de Polignac number, because 20135630513775 - 2²⁴ = 20135613736559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135630513777) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2739537892 + ... + 2739545241.

Almost surely, 2^{20135630513775} is an apocalyptic number.

20135630513775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20135630513775 is a deficient number, since it is larger than the sum of its proper divisors (18590529077337).

20135630513775 is a wasteful number, since it uses less digits than its factorization.

20135630513775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479083160 (or 5479083148 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 48.

The spelling of 20135630513775 in words is "twenty trillion, one hundred thirty-five billion, six hundred thirty million, five hundred thirteen thousand, seven hundred seventy-five".