20933497934 has 4 divisors (see below), whose sum is σ = 31400246904. Its totient is φ = 10466748966.

The previous prime is 20933497913. The next prime is 20933497997. The reversal of 20933497934 is 43979433902.

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

It is a super-2 number, since 2×20933497934² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5233374482 + ... + 5233374485.

It is an arithmetic number, because the mean of its divisors is an integer number (7850061726).

Almost surely, 2^20933497934 is an apocalyptic number.

20933497934 is a deficient number, since it is larger than the sum of its proper divisors (10466748970).

20933497934 is a wasteful number, since it uses less digits than its factorization.

20933497934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10466748969.

The product of its (nonzero) digits is 4408992, while the sum is 53.

The spelling of 20933497934 in words is "twenty billion, nine hundred thirty-three million, four hundred ninety-seven thousand, nine hundred thirty-four".