29108490642 has 80 divisors (see below), whose sum is σ = 81318992832. Its totient is φ = 7560643680.

The previous prime is 29108490617. The next prime is 29108490647. The reversal of 29108490642 is 24609480192.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (29108490647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1154293 + ... + 1179240.

Almost surely, 2^29108490642 is an apocalyptic number.

29108490642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29108490642 is an abundant number, since it is smaller than the sum of its proper divisors (52210502190).

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

29108490642 is a wasteful number, since it uses less digits than its factorization.

29108490642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333565 (or 2333556 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 29108490642 in words is "twenty-nine billion, one hundred eight million, four hundred ninety thousand, six hundred forty-two".