29097612656 has 20 divisors (see below), whose sum is σ = 64430428272. Its totient is φ = 12470405376.

The previous prime is 29097612653. The next prime is 29097612673. The reversal of 29097612656 is 65621679092.

It is a super-2 number, since 2×29097612656² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 29097612598 and 29097612607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29097612653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129899945 + ... + 129900168.

Almost surely, 2^29097612656 is an apocalyptic number.

It is an amenable number.

29097612656 is an abundant number, since it is smaller than the sum of its proper divisors (35332815616).

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

29097612656 is a wasteful number, since it uses less digits than its factorization.

29097612656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259800128 (or 259800122 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 29097612656 in words is "twenty-nine billion, ninety-seven million, six hundred twelve thousand, six hundred fifty-six".