20462238693 has 12 divisors (see below), whose sum is σ = 31830149260. Its totient is φ = 12592146816.

The previous prime is 20462238679. The next prime is 20462238701. The reversal of 20462238693 is 39683226402.

It is a happy number.

20462238693 is a `hidden beast` number, since 2 + 0 + 462 + 23 + 86 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8281364004 + 12180874689 = 91002^2 + 110367^2 .

It is not a de Polignac number, because 20462238693 - 2⁴ = 20462238677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20462238593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87445348 + ... + 87445581.

Almost surely, 2^20462238693 is an apocalyptic number.

It is an amenable number.

20462238693 is a deficient number, since it is larger than the sum of its proper divisors (11367910567).

20462238693 is a wasteful number, since it uses less digits than its factorization.

20462238693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174890948 (or 174890945 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 20462238693 in words is "twenty billion, four hundred sixty-two million, two hundred thirty-eight thousand, six hundred ninety-three".