1906980013 has 2 divisors, whose sum is σ = 1906980014. Its totient is φ = 1906980012.

The previous prime is 1906979993. The next prime is 1906980017. The reversal of 1906980013 is 3100896091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1790728489 + 116251524 = 42317^2 + 10782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1906980013 - 2²⁵ = 1873425581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906980017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953490006 + 953490007.

It is an arithmetic number, because the mean of its divisors is an integer number (953490007).

Almost surely, 2^1906980013 is an apocalyptic number.

It is an amenable number.

1906980013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906980013 is an equidigital number, since it uses as much as digits as its factorization.

1906980013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 1906980013 is about 43668.9822757527. The cubic root of 1906980013 is about 1240.0771745672.

The spelling of 1906980013 in words is "one billion, nine hundred six million, nine hundred eighty thousand, thirteen".