7212615652 has 12 divisors (see below), whose sum is σ = 13769539056. Its totient is φ = 3278461640.

The previous prime is 7212615649. The next prime is 7212615659. The reversal of 7212615652 is 2565162127.

It is not an unprimeable number, because it can be changed into a prime (7212615659) 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, 81961498 + ... + 81961585.

It is an arithmetic number, because the mean of its divisors is an integer number (1147461588).

Almost surely, 2^7212615652 is an apocalyptic number.

It is an amenable number.

7212615652 is a deficient number, since it is larger than the sum of its proper divisors (6556923404).

7212615652 is a wasteful number, since it uses less digits than its factorization.

7212615652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163923098 (or 163923096 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 7212615652 is about 84927.1196497326. The cubic root of 7212615652 is about 1932.1059146756.

Adding to 7212615652 its reverse (2565162127), we get a palindrome (9777777779).

It can be divided in two parts, 72126 and 15652, that added together give a palindrome (87778).

The spelling of 7212615652 in words is "seven billion, two hundred twelve million, six hundred fifteen thousand, six hundred fifty-two".