20343253468 has 12 divisors (see below), whose sum is σ = 35819103880. Its totient is φ = 10109223792.

The previous prime is 20343253429. The next prime is 20343253481. The reversal of 20343253468 is 86435234302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20343253468.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15600003 + ... + 15601306.

Almost surely, 2^20343253468 is an apocalyptic number.

It is an amenable number.

20343253468 is a deficient number, since it is larger than the sum of its proper divisors (15475850412).

20343253468 is a wasteful number, since it uses less digits than its factorization.

20343253468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31201476 (or 31201474 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 40.

The spelling of 20343253468 in words is "twenty billion, three hundred forty-three million, two hundred fifty-three thousand, four hundred sixty-eight".