18125780678 has 16 divisors (see below), whose sum is σ = 27457412400. Its totient is φ = 8973619200.

The previous prime is 18125780677. The next prime is 18125780689. The reversal of 18125780678 is 87608752181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18125780671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40598 + ... + 194678.

It is an arithmetic number, because the mean of its divisors is an integer number (1716088275).

Almost surely, 2^18125780678 is an apocalyptic number.

18125780678 is a deficient number, since it is larger than the sum of its proper divisors (9331631722).

18125780678 is a wasteful number, since it uses less digits than its factorization.

18125780678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154663.

The product of its (nonzero) digits is 1505280, while the sum is 53.

The spelling of 18125780678 in words is "eighteen billion, one hundred twenty-five million, seven hundred eighty thousand, six hundred seventy-eight".