7222756715 has 4 divisors (see below), whose sum is σ = 8667308064. Its totient is φ = 5778205368.

The previous prime is 7222756711. The next prime is 7222756721. The reversal of 7222756715 is 5176572227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5176572227 = 461 ⋅11229007.

It is a cyclic number.

It is not a de Polignac number, because 7222756715 - 2² = 7222756711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7222756711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722275667 + ... + 722275676.

It is an arithmetic number, because the mean of its divisors is an integer number (2166827016).

Almost surely, 2^7222756715 is an apocalyptic number.

7222756715 is a deficient number, since it is larger than the sum of its proper divisors (1444551349).

7222756715 is a wasteful number, since it uses less digits than its factorization.

7222756715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444551348.

The product of its digits is 411600, while the sum is 44.

The square root of 7222756715 is about 84986.8031814352. The cubic root of 7222756715 is about 1933.0110154476.

The spelling of 7222756715 in words is "seven billion, two hundred twenty-two million, seven hundred fifty-six thousand, seven hundred fifteen".