6996628072997 has 8 divisors (see below), whose sum is σ = 7092047709720. Its totient is φ = 6901581899520.

The previous prime is 6996628072939. The next prime is 6996628073003. The reversal of 6996628072997 is 7992708266996.

It is a Cunningham number, because it is equal to 2645114²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 33199026436 + 6963429046561 = 182206^2 + 2638831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6996628072997 - 2³⁶ = 6927908596261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6996628072097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93328088 + ... + 93403025.

It is an arithmetic number, because the mean of its divisors is an integer number (886505963715).

Almost surely, 2^{6996628072997} is an apocalyptic number.

It is an amenable number.

6996628072997 is a deficient number, since it is larger than the sum of its proper divisors (95419636723).

6996628072997 is a wasteful number, since it uses less digits than its factorization.

6996628072997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186731623.

The product of its (nonzero) digits is 2222131968, while the sum is 80.

The spelling of 6996628072997 in words is "six trillion, nine hundred ninety-six billion, six hundred twenty-eight million, seventy-two thousand, nine hundred ninety-seven".