78202283121834 has 8 divisors (see below), whose sum is σ = 156404566243680. Its totient is φ = 26067427707276.

The previous prime is 78202283121827. The next prime is 78202283121871. The reversal of 78202283121834 is 43812138220287.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

78202283121834 is an admirable number.

It is a super-2 number, since 2×78202283121834² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6516856926814 + ... + 6516856926825.

It is an arithmetic number, because the mean of its divisors is an integer number (19550570780460).

Almost surely, 2^{78202283121834} is an apocalyptic number.

78202283121834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78202283121834 is a wasteful number, since it uses less digits than its factorization.

78202283121834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13033713853644.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 78202283121834 in words is "seventy-eight trillion, two hundred two billion, two hundred eighty-three million, one hundred twenty-one thousand, eight hundred thirty-four".