12891774149038 has 8 divisors (see below), whose sum is σ = 19337685996888. Its totient is φ = 6445878816744.

The previous prime is 12891774149027. The next prime is 12891774149069. The reversal of 12891774149038 is 83094147719821.

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

It is a congruent 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, 1946781 + ... + 5438152.

It is an arithmetic number, because the mean of its divisors is an integer number (2417210749611).

Almost surely, 2^{12891774149038} is an apocalyptic number.

12891774149038 is a deficient number, since it is larger than the sum of its proper divisors (6445911847850).

12891774149038 is an equidigital number, since it uses as much as digits as its factorization.

12891774149038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257778.

The product of its (nonzero) digits is 24385536, while the sum is 64.

The spelling of 12891774149038 in words is "twelve trillion, eight hundred ninety-one billion, seven hundred seventy-four million, one hundred forty-nine thousand, thirty-eight".