23478078019 has 16 divisors (see below), whose sum is σ = 25992645120. Its totient is φ = 21028044960.

The previous prime is 23478077989. The next prime is 23478078031. The reversal of 23478078019 is 91087087432.

It is a cyclic number.

It is not a de Polignac number, because 23478078019 - 2²⁵ = 23444523587 is a prime.

It is a super-2 number, since 2×23478078019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23478078719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376897 + ... + 434749.

It is an arithmetic number, because the mean of its divisors is an integer number (1624540320).

Almost surely, 2^23478078019 is an apocalyptic number.

23478078019 is a deficient number, since it is larger than the sum of its proper divisors (2514567101).

23478078019 is a wasteful number, since it uses less digits than its factorization.

23478078019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58410.

The product of its (nonzero) digits is 677376, while the sum is 49.

The spelling of 23478078019 in words is "twenty-three billion, four hundred seventy-eight million, seventy-eight thousand, nineteen".