29748841638 has 16 divisors (see below), whose sum is σ = 59659806720. Its totient is φ = 9889259976.

The previous prime is 29748841613. The next prime is 29748841663. The reversal of 29748841638 is 83614884792.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29748841613) and next prime (29748841663).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6752758 + ... + 6757161.

It is an arithmetic number, because the mean of its divisors is an integer number (3728737920).

Almost surely, 2^29748841638 is an apocalyptic number.

29748841638 is an abundant number, since it is smaller than the sum of its proper divisors (29910965082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29748841638 is a wasteful number, since it uses less digits than its factorization.

29748841638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13510291.

The product of its digits is 18579456, while the sum is 60.

The spelling of 29748841638 in words is "twenty-nine billion, seven hundred forty-eight million, eight hundred forty-one thousand, six hundred thirty-eight".