78148466 has 8 divisors (see below), whose sum is σ = 127879344. Its totient is φ = 35522020.

The previous prime is 78148453. The next prime is 78148487. The reversal of 78148466 is 66484187.

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

It is a super-2 number, since 2×78148466² = 12214365476306312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1776080 + ... + 1776123.

It is an arithmetic number, because the mean of its divisors is an integer number (15984918).

Almost surely, 2^78148466 is an apocalyptic number.

78148466 is a deficient number, since it is larger than the sum of its proper divisors (49730878).

78148466 is a wasteful number, since it uses less digits than its factorization.

78148466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3552216.

The product of its digits is 258048, while the sum is 44.

The square root of 78148466 is about 8840.1621025861. The cubic root of 78148466 is about 427.5367837665.

The spelling of 78148466 in words is "seventy-eight million, one hundred forty-eight thousand, four hundred sixty-six".