29427146857 has 8 divisors (see below), whose sum is σ = 30999419360. Its totient is φ = 27857221920.

The previous prime is 29427146851. The next prime is 29427146909. The reversal of 29427146857 is 75864172492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29427146857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29427146798 and 29427146807.

It is not an unprimeable number, because it can be changed into a prime (29427146851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561123 + ... + 611320.

It is an arithmetic number, because the mean of its divisors is an integer number (3874927420).

Almost surely, 2^29427146857 is an apocalyptic number.

It is an amenable number.

29427146857 is a deficient number, since it is larger than the sum of its proper divisors (1572272503).

29427146857 is a wasteful number, since it uses less digits than its factorization.

29427146857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173783.

The product of its digits is 6773760, while the sum is 55.

The spelling of 29427146857 in words is "twenty-nine billion, four hundred twenty-seven million, one hundred forty-six thousand, eight hundred fifty-seven".