78518196467 has 8 divisors (see below), whose sum is σ = 83837428224. Its totient is φ = 73357747848.

The previous prime is 78518196443. The next prime is 78518196481. The reversal of 78518196467 is 76469181587.

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

It is not a de Polignac number, because 78518196467 - 2²² = 78514002163 is a prime.

It is a super-2 number, since 2×78518196467² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78518196437) 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, 39694763 + ... + 39696740.

It is an arithmetic number, because the mean of its divisors is an integer number (10479678528).

Almost surely, 2^78518196467 is an apocalyptic number.

78518196467 is a deficient number, since it is larger than the sum of its proper divisors (5319231757).

78518196467 is a wasteful number, since it uses less digits than its factorization.

78518196467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79391569.

The product of its digits is 20321280, while the sum is 62.

The spelling of 78518196467 in words is "seventy-eight billion, five hundred eighteen million, one hundred ninety-six thousand, four hundred sixty-seven".