78293254242 has 32 divisors (see below), whose sum is σ = 178966569600. Its totient is φ = 22368181248.

The previous prime is 78293254201. The next prime is 78293254297. The reversal of 78293254242 is 24245239287.

It is a super-2 number, since 2×78293254242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78293254191 and 78293254200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 834484 + ... + 923552.

It is an arithmetic number, because the mean of its divisors is an integer number (5592705300).

Almost surely, 2^78293254242 is an apocalyptic number.

78293254242 is an abundant number, since it is smaller than the sum of its proper divisors (100673315358).

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

78293254242 is a wasteful number, since it uses less digits than its factorization.

78293254242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110010.

The product of its digits is 1935360, while the sum is 48.

The spelling of 78293254242 in words is "seventy-eight billion, two hundred ninety-three million, two hundred fifty-four thousand, two hundred forty-two".