20492864467 has 4 divisors (see below), whose sum is σ = 20493398176. Its totient is φ = 20492330760.

The previous prime is 20492864453. The next prime is 20492864503. The reversal of 20492864467 is 76446829402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20492864467 - 2⁷ = 20492864339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20492864167) 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, 204384 + ... + 287677.

It is an arithmetic number, because the mean of its divisors is an integer number (5123349544).

Almost surely, 2^20492864467 is an apocalyptic number.

20492864467 is a deficient number, since it is larger than the sum of its proper divisors (533709).

20492864467 is an equidigital number, since it uses as much as digits as its factorization.

20492864467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533708.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 20492864467 in words is "twenty billion, four hundred ninety-two million, eight hundred sixty-four thousand, four hundred sixty-seven".