29077140864 has 128 divisors (see below), whose sum is σ = 80670412800. Its totient is φ = 9270319104.

The previous prime is 29077140863. The next prime is 29077140881. The reversal of 29077140864 is 46804177092.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29077140863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 820929 + ... + 855615.

It is an arithmetic number, because the mean of its divisors is an integer number (630237600).

Almost surely, 2^29077140864 is an apocalyptic number.

29077140864 is a gapful number since it is divisible by the number (24) 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 29077140864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40335206400).

29077140864 is an abundant number, since it is smaller than the sum of its proper divisors (51593271936).

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

29077140864 is a wasteful number, since it uses less digits than its factorization.

29077140864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34800 (or 34788 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 29077140864 in words is "twenty-nine billion, seventy-seven million, one hundred forty thousand, eight hundred sixty-four".