20513153076783 has 16 divisors (see below), whose sum is σ = 27381347059200. Its totient is φ = 13660198020000.

The previous prime is 20513153076733. The next prime is 20513153076803. The reversal of 20513153076783 is 38767035131502.

It is not a de Polignac number, because 20513153076783 - 2²⁰ = 20513152028207 is a prime.

It is a super-4 number, since 4×20513153076783⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20513153076733) by changing a digit.

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, 144674398 + ... + 144816116.

It is an arithmetic number, because the mean of its divisors is an integer number (1711334191200).

Almost surely, 2^{20513153076783} is an apocalyptic number.

20513153076783 is a deficient number, since it is larger than the sum of its proper divisors (6868193982417).

20513153076783 is a wasteful number, since it uses less digits than its factorization.

20513153076783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195142.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 20513153076783 in words is "twenty trillion, five hundred thirteen billion, one hundred fifty-three million, seventy-six thousand, seven hundred eighty-three".