7268618772 has 36 divisors (see below), whose sum is σ = 18870036276. Its totient is φ = 2357389440.

The previous prime is 7268618771. The next prime is 7268618827. The reversal of 7268618772 is 2778168627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7067092356 + 201526416 = 84066^2 + 14196^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7268618771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2727129 + ... + 2729792.

Almost surely, 2^7268618772 is an apocalyptic number.

It is an amenable number.

7268618772 is an abundant number, since it is smaller than the sum of its proper divisors (11601417504).

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

7268618772 is a wasteful number, since it uses less digits than its factorization.

7268618772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5456968 (or 5456963 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 7268618772 is about 85256.1949186099. The cubic root of 7268618772 is about 1937.0937079501.

The spelling of 7268618772 in words is "seven billion, two hundred sixty-eight million, six hundred eighteen thousand, seven hundred seventy-two".