20092785477 has 8 divisors (see below), whose sum is σ = 26851408320. Its totient is φ = 13364676480.

The previous prime is 20092785467. The next prime is 20092785491. The reversal of 20092785477 is 77458729002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20092785477 - 2⁶ = 20092785413 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20092785457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7626924 + ... + 7629557.

It is an arithmetic number, because the mean of its divisors is an integer number (3356426040).

Almost surely, 2^20092785477 is an apocalyptic number.

It is an amenable number.

20092785477 is a deficient number, since it is larger than the sum of its proper divisors (6758622843).

20092785477 is a wasteful number, since it uses less digits than its factorization.

20092785477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15256923.

The product of its (nonzero) digits is 1975680, while the sum is 51.

The spelling of 20092785477 in words is "twenty billion, ninety-two million, seven hundred eighty-five thousand, four hundred seventy-seven".