6428922915091 has 2 divisors, whose sum is σ = 6428922915092. Its totient is φ = 6428922915090.

The previous prime is 6428922915071. The next prime is 6428922915119. The reversal of 6428922915091 is 1905192298246.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6428922915091 is a prime.

It is a super-4 number, since 4×6428922915091⁴ (a number of 52 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6428922915071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214461457545 + 3214461457546.

It is an arithmetic number, because the mean of its divisors is an integer number (3214461457546).

Almost surely, 2^{6428922915091} is an apocalyptic number.

6428922915091 is a deficient number, since it is larger than the sum of its proper divisors (1).

6428922915091 is an equidigital number, since it uses as much as digits as its factorization.

6428922915091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 58.

The spelling of 6428922915091 in words is "six trillion, four hundred twenty-eight billion, nine hundred twenty-two million, nine hundred fifteen thousand, ninety-one".