20035912877 has 4 divisors (see below), whose sum is σ = 20055197760. Its totient is φ = 20016627996.

The previous prime is 20035912873. The next prime is 20035912907. The reversal of 20035912877 is 77821953002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20035912877 - 2² = 20035912873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20035912873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9640883 + ... + 9642960.

It is an arithmetic number, because the mean of its divisors is an integer number (5013799440).

Almost surely, 2^20035912877 is an apocalyptic number.

It is an amenable number.

20035912877 is a deficient number, since it is larger than the sum of its proper divisors (19284883).

20035912877 is a wasteful number, since it uses less digits than its factorization.

20035912877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19284882.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 20035912877 in words is "twenty billion, thirty-five million, nine hundred twelve thousand, eight hundred seventy-seven".