7028149867261 has 2 divisors, whose sum is σ = 7028149867262. Its totient is φ = 7028149867260.

The previous prime is 7028149867181. The next prime is 7028149867289. The reversal of 7028149867261 is 1627689418207.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4316795736100 + 2711354131161 = 2077690^2 + 1646619^2 .

It is a cyclic number.

It is not a de Polignac number, because 7028149867261 - 2¹⁵ = 7028149834493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7028149867261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7028149861261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3514074933630 + 3514074933631.

It is an arithmetic number, because the mean of its divisors is an integer number (3514074933631).

Almost surely, 2^{7028149867261} is an apocalyptic number.

It is an amenable number.

7028149867261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7028149867261 is an equidigital number, since it uses as much as digits as its factorization.

7028149867261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 7028149867261 in words is "seven trillion, twenty-eight billion, one hundred forty-nine million, eight hundred sixty-seven thousand, two hundred sixty-one".