2667506243 has 2 divisors, whose sum is σ = 2667506244. Its totient is φ = 2667506242.

The previous prime is 2667506239. The next prime is 2667506249. The reversal of 2667506243 is 3426057662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2667506243 - 2² = 2667506239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2667506243.

It is not a weakly prime, because it can be changed into another prime (2667506249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333753121 + 1333753122.

It is an arithmetic number, because the mean of its divisors is an integer number (1333753122).

Almost surely, 2^2667506243 is an apocalyptic number.

2667506243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2667506243 is an equidigital number, since it uses as much as digits as its factorization.

2667506243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The square root of 2667506243 is about 51647.9064725764. The cubic root of 2667506243 is about 1386.8680658598.

The spelling of 2667506243 in words is "two billion, six hundred sixty-seven million, five hundred six thousand, two hundred forty-three".