29998229479 has 2 divisors, whose sum is σ = 29998229480. Its totient is φ = 29998229478.

The previous prime is 29998229431. The next prime is 29998229489. The reversal of 29998229479 is 97492289992.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29998229479 - 2⁷ = 29998229351 is a prime.

It is a super-2 number, since 2×29998229479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29998229489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14999114739 + 14999114740.

It is an arithmetic number, because the mean of its divisors is an integer number (14999114740).

Almost surely, 2^29998229479 is an apocalyptic number.

29998229479 is a deficient number, since it is larger than the sum of its proper divisors (1).

29998229479 is an equidigital number, since it uses as much as digits as its factorization.

29998229479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105815808, while the sum is 70.

The spelling of 29998229479 in words is "twenty-nine billion, nine hundred ninety-eight million, two hundred twenty-nine thousand, four hundred seventy-nine".