29989492461 has 8 divisors (see below), whose sum is σ = 44428877760. Its totient is φ = 19992994956.

The previous prime is 29989492457. The next prime is 29989492487. The reversal of 29989492461 is 16429498992.

29989492461 is a `hidden beast` number, since 2 + 9 + 9 + 89 + 4 + 92 + 461 = 666.

It is not a de Polignac number, because 29989492461 - 2² = 29989492457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29989492361) 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, 555360945 + ... + 555360998.

It is an arithmetic number, because the mean of its divisors is an integer number (5553609720).

Almost surely, 2^29989492461 is an apocalyptic number.

It is an amenable number.

29989492461 is a deficient number, since it is larger than the sum of its proper divisors (14439385299).

29989492461 is a wasteful number, since it uses less digits than its factorization.

29989492461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110721952 (or 1110721946 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The spelling of 29989492461 in words is "twenty-nine billion, nine hundred eighty-nine million, four hundred ninety-two thousand, four hundred sixty-one".