78195344423 has 8 divisors (see below), whose sum is σ = 92447698080. Its totient is φ = 64713388320.

The previous prime is 78195344411. The next prime is 78195344453. The reversal of 78195344423 is 32444359187.

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

It is not a de Polignac number, because 78195344423 - 2²² = 78191150119 is a prime.

It is a super-2 number, since 2×78195344423² (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 (78195344453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192599168 + ... + 192599573.

It is an arithmetic number, because the mean of its divisors is an integer number (11555962260).

Almost surely, 2^78195344423 is an apocalyptic number.

78195344423 is a deficient number, since it is larger than the sum of its proper divisors (14252353657).

78195344423 is a wasteful number, since it uses less digits than its factorization.

78195344423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385198777.

The product of its digits is 2903040, while the sum is 50.

The spelling of 78195344423 in words is "seventy-eight billion, one hundred ninety-five million, three hundred forty-four thousand, four hundred twenty-three".