78506467426 has 8 divisors (see below), whose sum is σ = 118317804624. Its totient is φ = 39067199220.

The previous prime is 78506467393. The next prime is 78506467451. The reversal of 78506467426 is 62476460587.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93016720 + ... + 93017563.

It is an arithmetic number, because the mean of its divisors is an integer number (14789725578).

Almost surely, 2^78506467426 is an apocalyptic number.

78506467426 is a deficient number, since it is larger than the sum of its proper divisors (39811337198).

78506467426 is a wasteful number, since it uses less digits than its factorization.

78506467426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186034496.

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 78506467426 in words is "seventy-eight billion, five hundred six million, four hundred sixty-seven thousand, four hundred twenty-six".