7269608644 has 27 divisors (see below), whose sum is σ = 12893279917. Its totient is φ = 3586460768.

The previous prime is 7269608641. The next prime is 7269608657. The reversal of 7269608644 is 4468069627.

It is a happy number.

The square root of 7269608644 is 85262.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1395919044 + 5873689600 = 37362^2 + 76640^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7269608591 and 7269608600.

It is not an unprimeable number, because it can be changed into a prime (7269608641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15176397 + ... + 15176875.

Almost surely, 2^7269608644 is an apocalyptic number.

7269608644 is the 85262-nd square number.

It is an amenable number.

7269608644 is a deficient number, since it is larger than the sum of its proper divisors (5623671273).

7269608644 is an frugal number, since it uses more digits than its factorization.

7269608644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The cubic root of 7269608644 is about 1937.1816378969.

The spelling of 7269608644 in words is "seven billion, two hundred sixty-nine million, six hundred eight thousand, six hundred forty-four".