1209843134094 has 256 divisors, whose sum is σ = 3246538752000. Its totient is φ = 298265587200.

The previous prime is 1209843134083. The next prime is 1209843134117. The reversal of 1209843134094 is 4904313489021.

It is a super-2 number, since 2×1209843134094² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 20577399 + ... + 20636109.

It is an arithmetic number, because the mean of its divisors is an integer number (12681792000).

Almost surely, 2^{1209843134094} is an apocalyptic number.

1209843134094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1209843134094, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623269376000).

1209843134094 is an abundant number, since it is smaller than the sum of its proper divisors (2036695617906).

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

1209843134094 is a wasteful number, since it uses less digits than its factorization.

1209843134094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58804 (or 58790 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 1209843134094 in words is "one trillion, two hundred nine billion, eight hundred forty-three million, one hundred thirty-four thousand, ninety-four".