29685284057 has 16 divisors (see below), whose sum is σ = 34946130240. Its totient is φ = 24859934400.

The previous prime is 29685284053. The next prime is 29685284063. The reversal of 29685284057 is 75048258692.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 29685284057 - 2² = 29685284053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29685283993 and 29685284011.

It is not an unprimeable number, because it can be changed into a prime (29685284053) 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, 141182 + ... + 281607.

It is an arithmetic number, because the mean of its divisors is an integer number (2184133140).

Almost surely, 2^29685284057 is an apocalyptic number.

It is an amenable number.

29685284057 is a deficient number, since it is larger than the sum of its proper divisors (5260846183).

29685284057 is a wasteful number, since it uses less digits than its factorization.

29685284057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423304.

The product of its (nonzero) digits is 9676800, while the sum is 56.

The spelling of 29685284057 in words is "twenty-nine billion, six hundred eighty-five million, two hundred eighty-four thousand, fifty-seven".