7638972237 has 48 divisors (see below), whose sum is σ = 12178578048. Its totient is φ = 4585299840.

The previous prime is 7638972223. The next prime is 7638972239. The reversal of 7638972237 is 7322798367.

It is not a de Polignac number, because 7638972237 - 2⁷ = 7638972109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7638972239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 802687 + ... + 812147.

It is an arithmetic number, because the mean of its divisors is an integer number (253720376).

Almost surely, 2^7638972237 is an apocalyptic number.

It is an amenable number.

7638972237 is a deficient number, since it is larger than the sum of its proper divisors (4539605811).

7638972237 is a wasteful number, since it uses less digits than its factorization.

7638972237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650 (or 9647 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 7638972237 is about 87401.2141620470. The cubic root of 7638972237 is about 1969.4500803004.

The spelling of 7638972237 in words is "seven billion, six hundred thirty-eight million, nine hundred seventy-two thousand, two hundred thirty-seven".