18072619678 has 16 divisors (see below), whose sum is σ = 28075416480. Its totient is φ = 8714851936.

The previous prime is 18072619667. The next prime is 18072619703. The reversal of 18072619678 is 87691627081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124201 + ... + 227092.

It is an arithmetic number, because the mean of its divisors is an integer number (1754713530).

Almost surely, 2^18072619678 is an apocalyptic number.

18072619678 is a deficient number, since it is larger than the sum of its proper divisors (10002796802).

18072619678 is a wasteful number, since it uses less digits than its factorization.

18072619678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352211.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 18072619678 in words is "eighteen billion, seventy-two million, six hundred nineteen thousand, six hundred seventy-eight".