842120409134 has 16 divisors (see below), whose sum is σ = 1302231890736. Its totient is φ = 408173937600.

The previous prime is 842120409083. The next prime is 842120409173. The reversal of 842120409134 is 431904021248.

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, 32693372 + ... + 32719119.

It is an arithmetic number, because the mean of its divisors is an integer number (81389493171).

Almost surely, 2^842120409134 is an apocalyptic number.

842120409134 is a deficient number, since it is larger than the sum of its proper divisors (460111481602).

842120409134 is a wasteful number, since it uses less digits than its factorization.

842120409134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65412691.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 842120409134 in words is "eight hundred forty-two billion, one hundred twenty million, four hundred nine thousand, one hundred thirty-four".