23258453478 has 32 divisors (see below), whose sum is σ = 50161961472. Its totient is φ = 7146900000.

The previous prime is 23258453441. The next prime is 23258453501. The reversal of 23258453478 is 87435485232.

It is a self number, because there is not a number n which added to its sum of digits gives 23258453478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139948 + ... + 257103.

It is an arithmetic number, because the mean of its divisors is an integer number (1567561296).

Almost surely, 2^23258453478 is an apocalyptic number.

23258453478 is an abundant number, since it is smaller than the sum of its proper divisors (26903507994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23258453478 is a wasteful number, since it uses less digits than its factorization.

23258453478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397820.

The product of its digits is 6451200, while the sum is 51.

The spelling of 23258453478 in words is "twenty-three billion, two hundred fifty-eight million, four hundred fifty-three thousand, four hundred seventy-eight".