29797495488 has 224 divisors, whose sum is σ = 89713612800. Its totient is φ = 9694743552.

The previous prime is 29797495477. The next prime is 29797495489. The reversal of 29797495488 is 88459479792.

29797495488 is a `hidden beast` number, since 2 + 9 + 7 + 9 + 74 + 9 + 548 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (29797495489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20422503 + ... + 20423961.

It is an arithmetic number, because the mean of its divisors is an integer number (400507200).

Almost surely, 2^29797495488 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 29797495488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44856806400).

29797495488 is an abundant number, since it is smaller than the sum of its proper divisors (59916117312).

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

29797495488 is a wasteful number, since it uses less digits than its factorization.

29797495488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1756 (or 1740 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 29797495488 in words is "twenty-nine billion, seven hundred ninety-seven million, four hundred ninety-five thousand, four hundred eighty-eight".