7656212219997 has 12 divisors (see below), whose sum is σ = 11220674659040. Its totient is φ = 4640128617960.

The previous prime is 7656212219987. The next prime is 7656212220001. The reversal of 7656212219997 is 7999122126567.

It is not a de Polignac number, because 7656212219997 - 2¹⁴ = 7656212203613 is a prime.

It is a super-2 number, since 2×7656212219997² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7656212219947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10545746497 + ... + 10545747222.

Almost surely, 2^{7656212219997} is an apocalyptic number.

It is an amenable number.

7656212219997 is a deficient number, since it is larger than the sum of its proper divisors (3564462439043).

7656212219997 is a wasteful number, since it uses less digits than its factorization.

7656212219997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21091493744 (or 21091493733 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 66.

The spelling of 7656212219997 in words is "seven trillion, six hundred fifty-six billion, two hundred twelve million, two hundred nineteen thousand, nine hundred ninety-seven".