29640796818 has 16 divisors (see below), whose sum is σ = 61325786880. Its totient is φ = 9539566736.

The previous prime is 29640796817. The next prime is 29640796853. The reversal of 29640796818 is 81869704692.

It is not an unprimeable number, because it can be changed into a prime (29640796817) by changing a digit.

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, 85174530 + ... + 85174877.

It is an arithmetic number, because the mean of its divisors is an integer number (3832861680).

Almost surely, 2^29640796818 is an apocalyptic number.

29640796818 is an abundant number, since it is smaller than the sum of its proper divisors (31684990062).

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

29640796818 is a wasteful number, since it uses less digits than its factorization.

29640796818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170349441.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 29640796818 in words is "twenty-nine billion, six hundred forty million, seven hundred ninety-six thousand, eight hundred eighteen".