20769469413 has 16 divisors (see below), whose sum is σ = 34525871616. Its totient is φ = 10789334640.

The previous prime is 20769469379. The next prime is 20769469421. The reversal of 20769469413 is 31496496702.

It is a happy number.

It is not a de Polignac number, because 20769469413 - 2⁶ = 20769469349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20769469423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44955331 + ... + 44955792.

It is an arithmetic number, because the mean of its divisors is an integer number (2157866976).

Almost surely, 2^20769469413 is an apocalyptic number.

It is an amenable number.

20769469413 is a deficient number, since it is larger than the sum of its proper divisors (13756402203).

20769469413 is a wasteful number, since it uses less digits than its factorization.

20769469413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89911144.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 20769469413 in words is "twenty billion, seven hundred sixty-nine million, four hundred sixty-nine thousand, four hundred thirteen".