1213862773830 has 96 divisors (see below), whose sum is σ = 3389619921120. Its totient is φ = 277395955200.

The previous prime is 1213862773789. The next prime is 1213862773831. The reversal of 1213862773830 is 383772683121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213862773831) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 7102380 + ... + 7271280.

It is an arithmetic number, because the mean of its divisors is an integer number (35308540845).

Almost surely, 2^{1213862773830} is an apocalyptic number.

1213862773830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213862773830 is an abundant number, since it is smaller than the sum of its proper divisors (2175757147290).

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

1213862773830 is a wasteful number, since it uses less digits than its factorization.

1213862773830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173814 (or 173807 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 1213862773830 in words is "one trillion, two hundred thirteen billion, eight hundred sixty-two million, seven hundred seventy-three thousand, eight hundred thirty".