29213980136 has 64 divisors (see below), whose sum is σ = 62062848000. Its totient is φ = 12771691200.

The previous prime is 29213980091. The next prime is 29213980207. The reversal of 29213980136 is 63108931292.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 411815 + ... + 477513.

It is an arithmetic number, because the mean of its divisors is an integer number (969732000).

Almost surely, 2^29213980136 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 29213980136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31031424000).

29213980136 is an abundant number, since it is smaller than the sum of its proper divisors (32848867864).

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

29213980136 is a wasteful number, since it uses less digits than its factorization.

29213980136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65910 (or 65906 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 29213980136 in words is "twenty-nine billion, two hundred thirteen million, nine hundred eighty thousand, one hundred thirty-six".