78234087047958 has 48 divisors (see below), whose sum is σ = 175925974770000. Its totient is φ = 26057149687296.

The previous prime is 78234087047861. The next prime is 78234087047969. The reversal of 78234087047958 is 85974078043287.

It is a happy number.

78234087047958 is a `hidden beast` number, since 7 + 8 + 2 + 34 + 0 + 8 + 70 + 479 + 58 = 666.

It is a super-2 number, since 2×78234087047958² (a number of 29 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 23 ways as a sum of consecutive naturals, for example, 63834735 + ... + 65048762.

It is an arithmetic number, because the mean of its divisors is an integer number (3665124474375).

Almost surely, 2^{78234087047958} is an apocalyptic number.

78234087047958 is an abundant number, since it is smaller than the sum of its proper divisors (97691887722042).

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

78234087047958 is a wasteful number, since it uses less digits than its factorization.

78234087047958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128884763 (or 128884751 counting only the distinct ones).

The product of its (nonzero) digits is 758661120, while the sum is 72.

The spelling of 78234087047958 in words is "seventy-eight trillion, two hundred thirty-four billion, eighty-seven million, forty-seven thousand, nine hundred fifty-eight".