1213685384270 has 64 divisors (see below), whose sum is σ = 2239583385600. Its totient is φ = 473426553600.

The previous prime is 1213685384267. The next prime is 1213685384281. The reversal of 1213685384270 is 724835863121.

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 31 ways as a sum of consecutive naturals, for example, 67980845 + ... + 67998695.

It is an arithmetic number, because the mean of its divisors is an integer number (34993490400).

Almost surely, 2^{1213685384270} is an apocalyptic number.

1213685384270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213685384270 is a deficient number, since it is larger than the sum of its proper divisors (1025898001330).

1213685384270 is a wasteful number, since it uses less digits than its factorization.

1213685384270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18993.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 1213685384270 in words is "one trillion, two hundred thirteen billion, six hundred eighty-five million, three hundred eighty-four thousand, two hundred seventy".