7643272973 has 8 divisors (see below), whose sum is σ = 9036382080. Its totient is φ = 6325467120.

The previous prime is 7643272961. The next prime is 7643272979. The reversal of 7643272973 is 3792723467.

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

It is not a de Polignac number, because 7643272973 - 2⁶ = 7643272909 is a prime.

It is a super-3 number, since 3×7643272973³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7643272979) 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 7 ways as a sum of consecutive naturals, for example, 18825593 + ... + 18825998.

It is an arithmetic number, because the mean of its divisors is an integer number (1129547760).

Almost surely, 2^7643272973 is an apocalyptic number.

It is an amenable number.

7643272973 is a deficient number, since it is larger than the sum of its proper divisors (1393109107).

7643272973 is a wasteful number, since it uses less digits than its factorization.

7643272973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37651627.

The product of its digits is 2667168, while the sum is 50.

The square root of 7643272973 is about 87425.8141111651. The cubic root of 7643272973 is about 1969.8196106309.

The spelling of 7643272973 in words is "seven billion, six hundred forty-three million, two hundred seventy-two thousand, nine hundred seventy-three".