29168579457 has 6 divisors (see below), whose sum is σ = 42132392562. Its totient is φ = 19445719632.

The previous prime is 29168579449. The next prime is 29168579471. The reversal of 29168579457 is 75497586192.

29168579457 is a `hidden beast` number, since 2 + 9 + 1 + 6 + 8 + 579 + 4 + 57 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18311773041 + 10856806416 = 135321^2 + 104196^2 .

It is not a de Polignac number, because 29168579457 - 2³ = 29168579449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 29168579394 and 29168579403.

It is not an unprimeable number, because it can be changed into a prime (29168579417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1620476628 + ... + 1620476645.

It is an arithmetic number, because the mean of its divisors is an integer number (7022065427).

Almost surely, 2^29168579457 is an apocalyptic number.

It is an amenable number.

29168579457 is a deficient number, since it is larger than the sum of its proper divisors (12963813105).

29168579457 is a wasteful number, since it uses less digits than its factorization.

29168579457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240953279 (or 3240953276 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 63.

The spelling of 29168579457 in words is "twenty-nine billion, one hundred sixty-eight million, five hundred seventy-nine thousand, four hundred fifty-seven".