7790011001081 has 2 divisors, whose sum is σ = 7790011001082. Its totient is φ = 7790011001080.

The previous prime is 7790011001053. The next prime is 7790011001111. The reversal of 7790011001081 is 1801001100977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7715528403856 + 74482597225 = 2777684^2 + 272915^2 .

It is a cyclic number.

It is not a de Polignac number, because 7790011001081 - 2¹⁴ = 7790010984697 is a prime.

It is a super-2 number, since 2×7790011001081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7790011081081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3895005500540 + 3895005500541.

It is an arithmetic number, because the mean of its divisors is an integer number (3895005500541).

Almost surely, 2^{7790011001081} is an apocalyptic number.

It is an amenable number.

7790011001081 is a deficient number, since it is larger than the sum of its proper divisors (1).

7790011001081 is an equidigital number, since it uses as much as digits as its factorization.

7790011001081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 35.

The spelling of 7790011001081 in words is "seven trillion, seven hundred ninety billion, eleven million, one thousand, eighty-one".