74666678 has 8 divisors (see below), whose sum is σ = 112064472. Its totient is φ = 37311856.

The previous prime is 74666659. The next prime is 74666681. The reversal of 74666678 is 87666647.

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

It is a super-2 number, since 2×74666678² = 11150225607111368, which contains 22 as substring.

It is a congruent number.

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, 5975 + ... + 13602.

It is an arithmetic number, because the mean of its divisors is an integer number (14008059).

Almost surely, 2^74666678 is an apocalyptic number.

74666678 is a deficient number, since it is larger than the sum of its proper divisors (37397794).

74666678 is a wasteful number, since it uses less digits than its factorization.

74666678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21486.

The product of its digits is 2032128, while the sum is 50.

The square root of 74666678 is about 8640.9882536664. The cubic root of 74666678 is about 421.0906611489.

The spelling of 74666678 in words is "seventy-four million, six hundred sixty-six thousand, six hundred seventy-eight".