20767131417 has 4 divisors (see below), whose sum is σ = 27689508560. Its totient is φ = 13844754276.

The previous prime is 20767131367. The next prime is 20767131421. The reversal of 20767131417 is 71413176702.

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 not a de Polignac number, because 20767131417 - 2²² = 20762937113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20767131017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3461188567 + ... + 3461188572.

It is an arithmetic number, because the mean of its divisors is an integer number (6922377140).

Almost surely, 2^20767131417 is an apocalyptic number.

It is an amenable number.

20767131417 is a deficient number, since it is larger than the sum of its proper divisors (6922377143).

20767131417 is an equidigital number, since it uses as much as digits as its factorization.

20767131417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6922377142.

The product of its (nonzero) digits is 49392, while the sum is 39.

The spelling of 20767131417 in words is "twenty billion, seven hundred sixty-seven million, one hundred thirty-one thousand, four hundred seventeen".