23507784878019 has 32 divisors (see below), whose sum is σ = 33788811270144. Its totient is φ = 14451744764160.

The previous prime is 23507784877999. The next prime is 23507784878057. The reversal of 23507784878019 is 91087848770532.

It is not a de Polignac number, because 23507784878019 - 2⁵ = 23507784877987 is a prime.

It is a super-2 number, since 2×23507784878019² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23507784878059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212563632 + ... + 212674194.

It is an arithmetic number, because the mean of its divisors is an integer number (1055900352192).

Almost surely, 2^{23507784878019} is an apocalyptic number.

23507784878019 is a deficient number, since it is larger than the sum of its proper divisors (10281026392125).

23507784878019 is a wasteful number, since it uses less digits than its factorization.

23507784878019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116027.

The product of its (nonzero) digits is 189665280, while the sum is 69.

The spelling of 23507784878019 in words is "twenty-three trillion, five hundred seven billion, seven hundred eighty-four million, eight hundred seventy-eight thousand, nineteen".