7249668100 has 18 divisors (see below), whose sum is σ = 15731779994. Its totient is φ = 2899867200.

The previous prime is 7249668089. The next prime is 7249668113. The reversal of 7249668100 is 18669427.

It can be written as a sum of positive squares in 3 ways, for example, as 1476403776 + 5773264324 = 38424^2 + 75982^2 .

It is a super-2 number, since 2×7249668100² (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 (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36248241 + ... + 36248440.

Almost surely, 2^7249668100 is an apocalyptic number.

It is an amenable number.

7249668100 is an abundant number, since it is smaller than the sum of its proper divisors (8482111894).

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

7249668100 is a wasteful number, since it uses less digits than its factorization.

7249668100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72496695 (or 72496688 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 7249668100 is about 85144.9828234171. The cubic root of 7249668100 is about 1935.4087855194.

The spelling of 7249668100 in words is "seven billion, two hundred forty-nine million, six hundred sixty-eight thousand, one hundred".