83742644707 has 2 divisors, whose sum is σ = 83742644708. Its totient is φ = 83742644706.

The previous prime is 83742644621. The next prime is 83742644717. The reversal of 83742644707 is 70744624738.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83742644707 is a prime.

It is not a weakly prime, because it can be changed into another prime (83742644717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41871322353 + 41871322354.

It is an arithmetic number, because the mean of its divisors is an integer number (41871322354).

Almost surely, 2^83742644707 is an apocalyptic number.

83742644707 is a deficient number, since it is larger than the sum of its proper divisors (1).

83742644707 is an equidigital number, since it uses as much as digits as its factorization.

83742644707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6322176, while the sum is 52.

The spelling of 83742644707 in words is "eighty-three billion, seven hundred forty-two million, six hundred forty-four thousand, seven hundred seven".