78726437466 has 16 divisors (see below), whose sum is σ = 157478114304. Its totient is φ = 26237939264.

The previous prime is 78726437443. The next prime is 78726437479. The reversal of 78726437466 is 66473462787.

It is a super-3 number, since 3×78726437466³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010970 + ... + 1086053.

It is an arithmetic number, because the mean of its divisors is an integer number (9842382144).

Almost surely, 2^78726437466 is an apocalyptic number.

78726437466 is an abundant number, since it is smaller than the sum of its proper divisors (78751676838).

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

78726437466 is a wasteful number, since it uses less digits than its factorization.

78726437466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103285.

The product of its digits is 56899584, while the sum is 60.

The spelling of 78726437466 in words is "seventy-eight billion, seven hundred twenty-six million, four hundred thirty-seven thousand, four hundred sixty-six".