1809698056134 has 16 divisors (see below), whose sum is σ = 3744202875120. Its totient is φ = 582431558240.

The previous prime is 1809698056121. The next prime is 1809698056157. The reversal of 1809698056134 is 4316508969081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5200281597 + ... + 5200281944.

It is an arithmetic number, because the mean of its divisors is an integer number (234012679695).

Almost surely, 2^{1809698056134} is an apocalyptic number.

1809698056134 is an abundant number, since it is smaller than the sum of its proper divisors (1934504818986).

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

1809698056134 is a wasteful number, since it uses less digits than its factorization.

1809698056134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10400563575.

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 1809698056134 in words is "one trillion, eight hundred nine billion, six hundred ninety-eight million, fifty-six thousand, one hundred thirty-four".