7251420996 has 30 divisors (see below), whose sum is σ = 18956647710. Its totient is φ = 2417140224.

The previous prime is 7251420989. The next prime is 7251421033. The reversal of 7251420996 is 6990241527.

It can be written as a sum of positive squares in only one way, i.e., 6136528896 + 1114892100 = 78336^2 + 33390^2 .

It is a super-2 number, since 2×7251420996² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 11190141 + ... + 11190788.

It is an arithmetic number, because the mean of its divisors is an integer number (631888257).

Almost surely, 2^7251420996 is an apocalyptic number.

It is an amenable number.

7251420996 is an abundant number, since it is smaller than the sum of its proper divisors (11705226714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7251420996 is a wasteful number, since it uses less digits than its factorization.

7251420996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22380945 (or 22380934 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 7251420996 is about 85155.2757966293. The cubic root of 7251420996 is about 1935.5647603345.

The spelling of 7251420996 in words is "seven billion, two hundred fifty-one million, four hundred twenty thousand, nine hundred ninety-six".