3470780338691 has 2 divisors, whose sum is σ = 3470780338692. Its totient is φ = 3470780338690.

The previous prime is 3470780338643. The next prime is 3470780338699. The reversal of 3470780338691 is 1968330870743.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3470780338691 - 2²⁶ = 3470713229827 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3470780338691.

It is not a weakly prime, because it can be changed into another prime (3470780338699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1735390169345 + 1735390169346.

It is an arithmetic number, because the mean of its divisors is an integer number (1735390169346).

Almost surely, 2^{3470780338691} is an apocalyptic number.

3470780338691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3470780338691 is an equidigital number, since it uses as much as digits as its factorization.

3470780338691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18289152, while the sum is 59.

The spelling of 3470780338691 in words is "three trillion, four hundred seventy billion, seven hundred eighty million, three hundred thirty-eight thousand, six hundred ninety-one".