29845899768 has 64 divisors (see below), whose sum is σ = 79515509760. Its totient is φ = 9313606016.

The previous prime is 29845899763. The next prime is 29845899793. The reversal of 29845899768 is 86799854892.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 29845899768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29845899763) 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, 549255 + ... + 601142.

It is an arithmetic number, because the mean of its divisors is an integer number (1242429840).

Almost surely, 2^29845899768 is an apocalyptic number.

It is an amenable number.

29845899768 is an abundant number, since it is smaller than the sum of its proper divisors (49669609992).

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

29845899768 is a wasteful number, since it uses less digits than its factorization.

29845899768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150476 (or 1150472 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 75.

The spelling of 29845899768 in words is "twenty-nine billion, eight hundred forty-five million, eight hundred ninety-nine thousand, seven hundred sixty-eight".