1327964123864 has 32 divisors (see below), whose sum is σ = 2884618751520. Its totient is φ = 561331213056.

The previous prime is 1327964123851. The next prime is 1327964123881. The reversal of 1327964123864 is 4683214697231.

It is a happy number.

It is a super-2 number, since 2×1327964123864² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162418139 + ... + 162426314.

It is an arithmetic number, because the mean of its divisors is an integer number (90144335985).

Almost surely, 2^{1327964123864} is an apocalyptic number.

1327964123864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1327964123864 is an abundant number, since it is smaller than the sum of its proper divisors (1556654627656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1327964123864 is a wasteful number, since it uses less digits than its factorization.

1327964123864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324844539 (or 324844535 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 56.

The spelling of 1327964123864 in words is "one trillion, three hundred twenty-seven billion, nine hundred sixty-four million, one hundred twenty-three thousand, eight hundred sixty-four".