2354785642439 has 2 divisors, whose sum is σ = 2354785642440. Its totient is φ = 2354785642438.

The previous prime is 2354785642427. The next prime is 2354785642523. The reversal of 2354785642439 is 9342465874532.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2354785642439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2354785642739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177392821219 + 1177392821220.

It is an arithmetic number, because the mean of its divisors is an integer number (1177392821220).

Almost surely, 2^{2354785642439} is an apocalyptic number.

2354785642439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2354785642439 is an equidigital number, since it uses as much as digits as its factorization.

2354785642439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174182400, while the sum is 62.

The spelling of 2354785642439 in words is "two trillion, three hundred fifty-four billion, seven hundred eighty-five million, six hundred forty-two thousand, four hundred thirty-nine".