23834687428 has 12 divisors (see below), whose sum is σ = 41712462652. Its totient is φ = 11916840960.

The previous prime is 23834687363. The next prime is 23834687489. The reversal of 23834687428 is 82478643832.

It can be written as a sum of positive squares in 2 ways, for example, as 14442751684 + 9391935744 = 120178^2 + 96912^2 .

It is a super-2 number, since 2×23834687428² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 6453 + ... + 218428.

Almost surely, 2^23834687428 is an apocalyptic number.

It is an amenable number.

23834687428 is a deficient number, since it is larger than the sum of its proper divisors (17877775224).

23834687428 is a wasteful number, since it uses less digits than its factorization.

23834687428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251382 (or 251380 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 55.

The spelling of 23834687428 in words is "twenty-three billion, eight hundred thirty-four million, six hundred eighty-seven thousand, four hundred twenty-eight".