7920744237 has 12 divisors (see below), whose sum is σ = 13075514400. Its totient is φ = 4526139528.

The previous prime is 7920744217. The next prime is 7920744239. The reversal of 7920744237 is 7324470297.

It is not a de Polignac number, because 7920744237 - 2¹² = 7920740141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7920744192 and 7920744201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920744239) 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 11 ways as a sum of consecutive naturals, for example, 62862987 + ... + 62863112.

It is an arithmetic number, because the mean of its divisors is an integer number (1089626200).

Almost surely, 2^7920744237 is an apocalyptic number.

It is an amenable number.

7920744237 is a deficient number, since it is larger than the sum of its proper divisors (5154770163).

7920744237 is a wasteful number, since it uses less digits than its factorization.

7920744237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125726112 (or 125726109 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The square root of 7920744237 is about 88998.5631176144. The cubic root of 7920744237 is about 1993.3734215610.

The spelling of 7920744237 in words is "seven billion, nine hundred twenty million, seven hundred forty-four thousand, two hundred thirty-seven".