29484934639 has 2 divisors, whose sum is σ = 29484934640. Its totient is φ = 29484934638.

The previous prime is 29484934561. The next prime is 29484934649. The reversal of 29484934639 is 93643948492.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29484934639 - 2²¹ = 29482837487 is a prime.

It is a super-2 number, since 2×29484934639² (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 (29484934649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14742467319 + 14742467320.

It is an arithmetic number, because the mean of its divisors is an integer number (14742467320).

Almost surely, 2^29484934639 is an apocalyptic number.

29484934639 is a deficient number, since it is larger than the sum of its proper divisors (1).

29484934639 is an equidigital number, since it uses as much as digits as its factorization.

29484934639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40310784, while the sum is 61.

The spelling of 29484934639 in words is "twenty-nine billion, four hundred eighty-four million, nine hundred thirty-four thousand, six hundred thirty-nine".