2626062042557 has 2 divisors, whose sum is σ = 2626062042558. Its totient is φ = 2626062042556.

The previous prime is 2626062042523. The next prime is 2626062042619. The reversal of 2626062042557 is 7552402606262.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2030835905476 + 595226137081 = 1425074^2 + 771509^2 .

It is a cyclic number.

It is not a de Polignac number, because 2626062042557 - 2⁶ = 2626062042493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2626062042517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1313031021278 + 1313031021279.

It is an arithmetic number, because the mean of its divisors is an integer number (1313031021279).

Almost surely, 2^{2626062042557} is an apocalyptic number.

It is an amenable number.

2626062042557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2626062042557 is an equidigital number, since it uses as much as digits as its factorization.

2626062042557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2419200, while the sum is 47.

The spelling of 2626062042557 in words is "two trillion, six hundred twenty-six billion, sixty-two million, forty-two thousand, five hundred fifty-seven".