29871041490 has 40 divisors (see below), whose sum is σ = 80319913740. Its totient is φ = 7965610848.

The previous prime is 29871041429. The next prime is 29871041491. The reversal of 29871041490 is 9414017892.

It is a happy number.

29871041490 is a `hidden beast` number, since 2 + 98 + 71 + 0 + 4 + 1 + 490 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 27218070441 + 2652971049 = 164979^2 + 51507^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (29871041491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18438105 + ... + 18439724.

Almost surely, 2^29871041490 is an apocalyptic number.

29871041490 is an abundant number, since it is smaller than the sum of its proper divisors (50448872250).

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

29871041490 is a wasteful number, since it uses less digits than its factorization.

29871041490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36877848 (or 36877839 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 29871041490 in words is "twenty-nine billion, eight hundred seventy-one million, forty-one thousand, four hundred ninety".