672815512747 has 8 divisors (see below), whose sum is σ = 775986437600. Its totient is φ = 571408193664.

The previous prime is 672815512723. The next prime is 672815512771. The reversal of 672815512747 is 747215518276.

It is an interprime number because it is at equal distance from previous prime (672815512723) and next prime (672815512771).

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

It is not a de Polignac number, because 672815512747 - 2⁷ = 672815512619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672815512777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440900622 + ... + 440902147.

It is an arithmetic number, because the mean of its divisors is an integer number (96998304700).

Almost surely, 2^672815512747 is an apocalyptic number.

672815512747 is a deficient number, since it is larger than the sum of its proper divisors (103170924853).

672815512747 is a wasteful number, since it uses less digits than its factorization.

672815512747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881802885.

The product of its digits is 6585600, while the sum is 55.

The spelling of 672815512747 in words is "six hundred seventy-two billion, eight hundred fifteen million, five hundred twelve thousand, seven hundred forty-seven".