23930478278 has 16 divisors (see below), whose sum is σ = 41025740064. Its totient is φ = 10255403520.

The previous prime is 23930478269. The next prime is 23930478307. The reversal of 23930478278 is 87287403932.

It is a super-2 number, since 2×23930478278² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409958 + ... + 464678.

It is an arithmetic number, because the mean of its divisors is an integer number (2564108754).

Almost surely, 2^23930478278 is an apocalyptic number.

23930478278 is a deficient number, since it is larger than the sum of its proper divisors (17095261786).

23930478278 is a wasteful number, since it uses less digits than its factorization.

23930478278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85967.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 23930478278 in words is "twenty-three billion, nine hundred thirty million, four hundred seventy-eight thousand, two hundred seventy-eight".