29810105988 has 96 divisors (see below), whose sum is σ = 75642126336. Its totient is φ = 9082668672.

The previous prime is 29810105959. The next prime is 29810106103. The reversal of 29810105988 is 88950101892.

It is a super-2 number, since 2×29810105988² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29810105988.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13530495 + ... + 13532697.

It is an arithmetic number, because the mean of its divisors is an integer number (787938816).

Almost surely, 2^29810105988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29810105988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37821063168).

29810105988 is an abundant number, since it is smaller than the sum of its proper divisors (45832020348).

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

29810105988 is a wasteful number, since it uses less digits than its factorization.

29810105988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 51.

The spelling of 29810105988 in words is "twenty-nine billion, eight hundred ten million, one hundred five thousand, nine hundred eighty-eight".