29070809972 has 12 divisors (see below), whose sum is σ = 51167987556. Its totient is φ = 14451384960.

The previous prime is 29070809969. The next prime is 29070810001. The reversal of 29070809972 is 27990807092.

It can be written as a sum of positive squares in 2 ways, for example, as 28134694756 + 936115216 = 167734^2 + 30596^2 .

It is a super-2 number, since 2×29070809972² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21004229 + ... + 21005612.

It is an arithmetic number, because the mean of its divisors is an integer number (4263998963).

Almost surely, 2^29070809972 is an apocalyptic number.

It is an amenable number.

29070809972 is a deficient number, since it is larger than the sum of its proper divisors (22097177584).

29070809972 is a wasteful number, since it uses less digits than its factorization.

29070809972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42010018 (or 42010016 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 29070809972 in words is "twenty-nine billion, seventy million, eight hundred nine thousand, nine hundred seventy-two".