29860657212 has 24 divisors (see below), whose sum is σ = 72704209536. Its totient is φ = 9520789168.

The previous prime is 29860657103. The next prime is 29860657213. The reversal of 29860657212 is 21275606892.

It is a super-2 number, since 2×29860657212² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29860657213) 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, 54095118 + ... + 54095669.

It is an arithmetic number, because the mean of its divisors is an integer number (3029342064).

Almost surely, 2^29860657212 is an apocalyptic number.

It is an amenable number.

29860657212 is an abundant number, since it is smaller than the sum of its proper divisors (42843552324).

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

29860657212 is a wasteful number, since it uses less digits than its factorization.

29860657212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108190817 (or 108190815 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 29860657212 in words is "twenty-nine billion, eight hundred sixty million, six hundred fifty-seven thousand, two hundred twelve".