29248398018 has 144 divisors (see below), whose sum is σ = 75049902720. Its totient is φ = 8206494912.

The previous prime is 29248398013. The next prime is 29248398019. The reversal of 29248398018 is 81089384292.

29248398018 is a `hidden beast` number, since 2 + 9 + 248 + 398 + 0 + 1 + 8 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (29248398013) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 27359988 + ... + 27361056.

It is an arithmetic number, because the mean of its divisors is an integer number (521179880).

Almost surely, 2^29248398018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29248398018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37524951360).

29248398018 is an abundant number, since it is smaller than the sum of its proper divisors (45801504702).

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

29248398018 is a wasteful number, since it uses less digits than its factorization.

29248398018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621 (or 1611 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 29248398018 in words is "twenty-nine billion, two hundred forty-eight million, three hundred ninety-eight thousand, eighteen".