29479679922 has 256 divisors, whose sum is σ = 79691931648. Its totient is φ = 7043604480.

The previous prime is 29479679921. The next prime is 29479679969. The reversal of 29479679922 is 22997697492.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (29479679921) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38136328 + ... + 38137100.

It is an arithmetic number, because the mean of its divisors is an integer number (311296608).

Almost surely, 2^29479679922 is an apocalyptic number.

29479679922 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 29479679922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39845965824).

29479679922 is an abundant number, since it is smaller than the sum of its proper divisors (50212251726).

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

29479679922 is a wasteful number, since it uses less digits than its factorization.

29479679922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953.

The product of its digits is 61725888, while the sum is 66.

It can be divided in two parts, 2947 and 9679922, that added together give a palindrome (9682869).

The spelling of 29479679922 in words is "twenty-nine billion, four hundred seventy-nine million, six hundred seventy-nine thousand, nine hundred twenty-two".