23278078715605 has 16 divisors (see below), whose sum is σ = 31929871814784. Its totient is φ = 15959286331200.

The previous prime is 23278078715581. The next prime is 23278078715621. The reversal of 23278078715605 is 50651787087232.

It is a happy number.

It is not a de Polignac number, because 23278078715605 - 2⁷ = 23278078715477 is a prime.

It is a Duffinian number.

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, 58649142 + ... + 59044711.

It is an arithmetic number, because the mean of its divisors is an integer number (1995616988424).

Almost surely, 2^{23278078715605} is an apocalyptic number.

It is an amenable number.

23278078715605 is a deficient number, since it is larger than the sum of its proper divisors (8651793099179).

23278078715605 is a wasteful number, since it uses less digits than its factorization.

23278078715605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117699516.

The product of its (nonzero) digits is 39513600, while the sum is 61.

The spelling of 23278078715605 in words is "twenty-three trillion, two hundred seventy-eight billion, seventy-eight million, seven hundred fifteen thousand, six hundred five".