29727921134 has 4 divisors (see below), whose sum is σ = 44591881704. Its totient is φ = 14863960566.

The previous prime is 29727921133. The next prime is 29727921137. The reversal of 29727921134 is 43112972792.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29727921133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7431980282 + ... + 7431980285.

It is an arithmetic number, because the mean of its divisors is an integer number (11147970426).

Almost surely, 2^29727921134 is an apocalyptic number.

29727921134 is a deficient number, since it is larger than the sum of its proper divisors (14863960570).

29727921134 is a wasteful number, since it uses less digits than its factorization.

29727921134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863960569.

The product of its digits is 381024, while the sum is 47.

The spelling of 29727921134 in words is "twenty-nine billion, seven hundred twenty-seven million, nine hundred twenty-one thousand, one hundred thirty-four".