30696091639 has 2 divisors, whose sum is σ = 30696091640. Its totient is φ = 30696091638.

The previous prime is 30696091579. The next prime is 30696091691. The reversal of 30696091639 is 93619069603.

It is an a-pointer prime, because the next prime (30696091691) can be obtained adding 30696091639 to its sum of digits (52).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30696091639 - 2¹³ = 30696083447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30696097639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15348045819 + 15348045820.

It is an arithmetic number, because the mean of its divisors is an integer number (15348045820).

Almost surely, 2^30696091639 is an apocalyptic number.

30696091639 is a deficient number, since it is larger than the sum of its proper divisors (1).

30696091639 is an equidigital number, since it uses as much as digits as its factorization.

30696091639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417176, while the sum is 52.

The spelling of 30696091639 in words is "thirty billion, six hundred ninety-six million, ninety-one thousand, six hundred thirty-nine".