746666814139 has 4 divisors (see below), whose sum is σ = 746671524280. Its totient is φ = 746662104000.

The previous prime is 746666814137. The next prime is 746666814181. The reversal of 746666814139 is 931418666647.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 746666814139 - 2¹ = 746666814137 is a prime.

It is a super-2 number, since 2×746666814139² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (746666814137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2108694 + ... + 2437195.

It is an arithmetic number, because the mean of its divisors is an integer number (186667881070).

Almost surely, 2^746666814139 is an apocalyptic number.

746666814139 is a deficient number, since it is larger than the sum of its proper divisors (4710141).

746666814139 is a wasteful number, since it uses less digits than its factorization.

746666814139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4710140.

The product of its digits is 31352832, while the sum is 61.

The spelling of 746666814139 in words is "seven hundred forty-six billion, six hundred sixty-six million, eight hundred fourteen thousand, one hundred thirty-nine".