20035912878 has 48 divisors (see below), whose sum is σ = 43868219616. Its totient is φ = 6608424960.

The previous prime is 20035912873. The next prime is 20035912907. The reversal of 20035912878 is 87821953002.

It is a happy number.

20035912878 is a `hidden beast` number, since 200 + 359 + 1 + 28 + 78 = 666.

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 23 ways as a sum of consecutive naturals, for example, 2742126 + ... + 2749422.

It is an arithmetic number, because the mean of its divisors is an integer number (913921242).

Almost surely, 2^20035912878 is an apocalyptic number.

20035912878 is an abundant number, since it is smaller than the sum of its proper divisors (23832306738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20035912878 is a wasteful number, since it uses less digits than its factorization.

20035912878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8889 (or 8886 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 20035912878 in words is "twenty billion, thirty-five million, nine hundred twelve thousand, eight hundred seventy-eight".