29773727064 has 32 divisors (see below), whose sum is σ = 82704798000. Its totient is φ = 9924575616.

The previous prime is 29773727057. The next prime is 29773727069. The reversal of 29773727064 is 46072737792.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 29773727064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29773727069) 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, 68920449 + ... + 68920880.

Almost surely, 2^29773727064 is an apocalyptic number.

29773727064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

29773727064 is an abundant number, since it is smaller than the sum of its proper divisors (52931070936).

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

29773727064 is a wasteful number, since it uses less digits than its factorization.

29773727064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137841344 (or 137841334 counting only the distinct ones).

The product of its (nonzero) digits is 6223392, while the sum is 54.

The spelling of 29773727064 in words is "twenty-nine billion, seven hundred seventy-three million, seven hundred twenty-seven thousand, sixty-four".