1213878087334 has 32 divisors (see below), whose sum is σ = 2091097929600. Its totient is φ = 522670760640.

The previous prime is 1213878087329. The next prime is 1213878087343. The reversal of 1213878087334 is 4337808783121.

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 15 ways as a sum of consecutive naturals, for example, 4233034 + ... + 4510690.

It is an arithmetic number, because the mean of its divisors is an integer number (65346810300).

Almost surely, 2^{1213878087334} is an apocalyptic number.

1213878087334 is a deficient number, since it is larger than the sum of its proper divisors (877219842266).

1213878087334 is a wasteful number, since it uses less digits than its factorization.

1213878087334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288148.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 1213878087334 in words is "one trillion, two hundred thirteen billion, eight hundred seventy-eight million, eighty-seven thousand, three hundred thirty-four".