78432167425834 has 32 divisors (see below), whose sum is σ = 131385672190080. Its totient is φ = 34897146504192.

The previous prime is 78432167425757. The next prime is 78432167425841. The reversal of 78432167425834 is 43852476123487.

It is a happy number.

It is a super-3 number, since 3×78432167425834³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120362959 + ... + 121012834.

It is an arithmetic number, because the mean of its divisors is an integer number (4105802255940).

Almost surely, 2^{78432167425834} is an apocalyptic number.

78432167425834 is a deficient number, since it is larger than the sum of its proper divisors (52953504764246).

78432167425834 is a wasteful number, since it uses less digits than its factorization.

78432167425834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241376334.

The product of its digits is 216760320, while the sum is 64.

The spelling of 78432167425834 in words is "seventy-eight trillion, four hundred thirty-two billion, one hundred sixty-seven million, four hundred twenty-five thousand, eight hundred thirty-four".