29489715031890 has 32 divisors (see below), whose sum is σ = 70775852351616. Its totient is φ = 7863864422400.

The previous prime is 29489715031849. The next prime is 29489715031901. The reversal of 29489715031890 is 9813051798492.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375099 + ... + 7688961.

It is an arithmetic number, because the mean of its divisors is an integer number (2211745385988).

Almost surely, 2^{29489715031890} is an apocalyptic number.

29489715031890 is an abundant number, since it is smaller than the sum of its proper divisors (41286137319726).

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

29489715031890 is a wasteful number, since it uses less digits than its factorization.

29489715031890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7448274.

The product of its (nonzero) digits is 39191040, while the sum is 66.

The spelling of 29489715031890 in words is "twenty-nine trillion, four hundred eighty-nine billion, seven hundred fifteen million, thirty-one thousand, eight hundred ninety".