29486639203968 has 64 divisors (see below), whose sum is σ = 80234224096320. Its totient is φ = 9589150955520.

The previous prime is 29486639203943. The next prime is 29486639203969. The reversal of 29486639203968 is 86930293668492.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 29486639203968.

It is not an unprimeable number, because it can be changed into a prime (29486639203969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 936424780 + ... + 936456267.

It is an arithmetic number, because the mean of its divisors is an integer number (1253659751505).

Almost surely, 2^{29486639203968} is an apocalyptic number.

It is an amenable number.

29486639203968 is an abundant number, since it is smaller than the sum of its proper divisors (50747584892352).

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

29486639203968 is a wasteful number, since it uses less digits than its factorization.

29486639203968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872881105 (or 1872881093 counting only the distinct ones).

The product of its (nonzero) digits is 1451188224, while the sum is 75.

The spelling of 29486639203968 in words is "twenty-nine trillion, four hundred eighty-six billion, six hundred thirty-nine million, two hundred three thousand, nine hundred sixty-eight".