23406678425 has 12 divisors (see below), whose sum is σ = 31256918700. Its totient is φ = 17284931520.

The previous prime is 23406678409. The next prime is 23406678473. The reversal of 23406678425 is 52487660432.

It can be written as a sum of positive squares in 6 ways, for example, as 1216405129 + 22190273296 = 34877^2 + 148964^2 .

It is not a de Polignac number, because 23406678425 - 2⁴ = 23406678409 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23406678425.

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 11 ways as a sum of consecutive naturals, for example, 36009950 + ... + 36010599.

It is an arithmetic number, because the mean of its divisors is an integer number (2604743225).

Almost surely, 2^23406678425 is an apocalyptic number.

23406678425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23406678425 is a deficient number, since it is larger than the sum of its proper divisors (7850240275).

23406678425 is a wasteful number, since it uses less digits than its factorization.

23406678425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72020572 (or 72020567 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 23406678425 in words is "twenty-three billion, four hundred six million, six hundred seventy-eight thousand, four hundred twenty-five".