78237075943 has 8 divisors (see below), whose sum is σ = 84772218608. Its totient is φ = 71775777024.

The previous prime is 78237075911. The next prime is 78237075947. The reversal of 78237075943 is 34957073287.

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

It is a cyclic number.

It is not a de Polignac number, because 78237075943 - 2⁵ = 78237075911 is a prime.

It is a super-2 number, since 2×78237075943² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78237075947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18458730 + ... + 18462967.

It is an arithmetic number, because the mean of its divisors is an integer number (10596527326).

Almost surely, 2^78237075943 is an apocalyptic number.

78237075943 is a deficient number, since it is larger than the sum of its proper divisors (6535142665).

78237075943 is a wasteful number, since it uses less digits than its factorization.

78237075943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36921873.

The product of its (nonzero) digits is 8890560, while the sum is 55.

The spelling of 78237075943 in words is "seventy-eight billion, two hundred thirty-seven million, seventy-five thousand, nine hundred forty-three".