7902626855797 has 2 divisors, whose sum is σ = 7902626855798. Its totient is φ = 7902626855796.

The previous prime is 7902626855741. The next prime is 7902626855801. The reversal of 7902626855797 is 7975586262097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4774111380676 + 3128515475121 = 2184974^2 + 1768761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7902626855797 is a prime.

It is a super-2 number, since 2×7902626855797² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7902626895797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3951313427898 + 3951313427899.

It is an arithmetic number, because the mean of its divisors is an integer number (3951313427899).

Almost surely, 2^{7902626855797} is an apocalyptic number.

It is an amenable number.

7902626855797 is a deficient number, since it is larger than the sum of its proper divisors (1).

7902626855797 is an equidigital number, since it uses as much as digits as its factorization.

7902626855797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800150400, while the sum is 73.

The spelling of 7902626855797 in words is "seven trillion, nine hundred two billion, six hundred twenty-six million, eight hundred fifty-five thousand, seven hundred ninety-seven".