74676867646 has 8 divisors (see below), whose sum is σ = 112016691360. Its totient is φ = 37337970528.

The previous prime is 74676867641. The next prime is 74676867689. The reversal of 74676867646 is 64676867647.

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

It is a super-2 number, since 2×74676867646² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74676867641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 28075 + ... + 387481.

It is an arithmetic number, because the mean of its divisors is an integer number (14002086420).

Almost surely, 2^74676867646 is an apocalyptic number.

74676867646 is a deficient number, since it is larger than the sum of its proper divisors (37339823714).

74676867646 is a wasteful number, since it uses less digits than its factorization.

74676867646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463298.

The product of its digits is 341397504, while the sum is 67.

Subtracting from 74676867646 its reverse (64676867647), we obtain a palindrome (9999999999).

The spelling of 74676867646 in words is "seventy-four billion, six hundred seventy-six million, eight hundred sixty-seven thousand, six hundred forty-six".