7272065642 has 4 divisors (see below), whose sum is σ = 10908098466. Its totient is φ = 3636032820.

The previous prime is 7272065629. The next prime is 7272065693. The reversal of 7272065642 is 2465602727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6076358401 + 1195707241 = 77951^2 + 34579^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7272065642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1818016409 + ... + 1818016412.

Almost surely, 2^7272065642 is an apocalyptic number.

7272065642 is a deficient number, since it is larger than the sum of its proper divisors (3636032824).

7272065642 is a wasteful number, since it uses less digits than its factorization.

7272065642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636032823.

The product of its (nonzero) digits is 282240, while the sum is 41.

The square root of 7272065642 is about 85276.4073000264. The cubic root of 7272065642 is about 1937.3998575893.

The spelling of 7272065642 in words is "seven billion, two hundred seventy-two million, sixty-five thousand, six hundred forty-two".