7643272972 has 48 divisors (see below), whose sum is σ = 13936333824. Its totient is φ = 3664976000.

The previous prime is 7643272961. The next prime is 7643272979. The reversal of 7643272972 is 2792723467.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (7643272979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5017803 + ... + 5019325.

It is an arithmetic number, because the mean of its divisors is an integer number (290340288).

Almost surely, 2^7643272972 is an apocalyptic number.

It is an amenable number.

7643272972 is a deficient number, since it is larger than the sum of its proper divisors (6293060852).

7643272972 is a wasteful number, since it uses less digits than its factorization.

7643272972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2068 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 49.

The square root of 7643272972 is about 87425.8141054460. The cubic root of 7643272972 is about 1969.8196105450.

The spelling of 7643272972 in words is "seven billion, six hundred forty-three million, two hundred seventy-two thousand, nine hundred seventy-two".