29290151728 has 20 divisors (see below), whose sum is σ = 58706555040. Its totient is φ = 14140073024.

The previous prime is 29290151669. The next prime is 29290151729. The reversal of 29290151728 is 82715109292.

It is a super-2 number, since 2×29290151728² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29290151729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31562200 + ... + 31563127.

It is an arithmetic number, because the mean of its divisors is an integer number (2935327752).

Almost surely, 2^29290151728 is an apocalyptic number.

It is an amenable number.

29290151728 is an abundant number, since it is smaller than the sum of its proper divisors (29416403312).

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

29290151728 is a wasteful number, since it uses less digits than its factorization.

29290151728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63125364 (or 63125358 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 29290151728 in words is "twenty-nine billion, two hundred ninety million, one hundred fifty-one thousand, seven hundred twenty-eight".