7267121047 has 4 divisors (see below), whose sum is σ = 7267342680. Its totient is φ = 7266899416.

The previous prime is 7267121021. The next prime is 7267121051. The reversal of 7267121047 is 7401217627.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7267121047 is a prime.

It is a super-2 number, since 2×7267121047² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7267120997 and 7267121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7267121947) 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, 50797 + ... + 130822.

It is an arithmetic number, because the mean of its divisors is an integer number (1816835670).

Almost surely, 2^7267121047 is an apocalyptic number.

7267121047 is a deficient number, since it is larger than the sum of its proper divisors (221633).

7267121047 is a wasteful number, since it uses less digits than its factorization.

7267121047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221632.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 7267121047 is about 85247.4107935250. The cubic root of 7267121047 is about 1936.9606504391.

The spelling of 7267121047 in words is "seven billion, two hundred sixty-seven million, one hundred twenty-one thousand, forty-seven".