12901864019618 has 8 divisors (see below), whose sum is σ = 22117481176512. Its totient is φ = 5529370294116.

The previous prime is 12901864019579. The next prime is 12901864019621. The reversal of 12901864019618 is 81691046810921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460780857830 + ... + 460780857857.

It is an arithmetic number, because the mean of its divisors is an integer number (2764685147064).

Almost surely, 2^{12901864019618} is an apocalyptic number.

12901864019618 is a deficient number, since it is larger than the sum of its proper divisors (9215617156894).

12901864019618 is an equidigital number, since it uses as much as digits as its factorization.

12901864019618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921561715696.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The spelling of 12901864019618 in words is "twelve trillion, nine hundred one billion, eight hundred sixty-four million, nineteen thousand, six hundred eighteen".