29116326540 has 384 divisors, whose sum is σ = 101258035200. Its totient is φ = 6108318720.

The previous prime is 29116326529. The next prime is 29116326557. The reversal of 29116326540 is 4562361192.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22276567 + ... + 22277873.

It is an arithmetic number, because the mean of its divisors is an integer number (263692800).

Almost surely, 2^29116326540 is an apocalyptic number.

29116326540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29116326540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50629017600).

29116326540 is an abundant number, since it is smaller than the sum of its proper divisors (72141708660).

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

29116326540 is a wasteful number, since it uses less digits than its factorization.

29116326540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 29116326540 in words is "twenty-nine billion, one hundred sixteen million, three hundred twenty-six thousand, five hundred forty".