29679911819 has 2 divisors, whose sum is σ = 29679911820. Its totient is φ = 29679911818.

The previous prime is 29679911783. The next prime is 29679911869. The reversal of 29679911819 is 91811997692.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29679911819 is a prime.

It is a super-2 number, since 2×29679911819² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29679911869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14839955909 + 14839955910.

It is an arithmetic number, because the mean of its divisors is an integer number (14839955910).

Almost surely, 2^29679911819 is an apocalyptic number.

29679911819 is a deficient number, since it is larger than the sum of its proper divisors (1).

29679911819 is an equidigital number, since it uses as much as digits as its factorization.

29679911819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 62.

The spelling of 29679911819 in words is "twenty-nine billion, six hundred seventy-nine million, nine hundred eleven thousand, eight hundred nineteen".