29313786290 has 16 divisors (see below), whose sum is σ = 55868628312. Its totient is φ = 11035778304.

The previous prime is 29313786289. The next prime is 29313786319. The reversal of 29313786290 is 9268731392.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17608493809 + 11705292481 = 132697^2 + 108191^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86216849 + ... + 86217188.

Almost surely, 2^29313786290 is an apocalyptic number.

29313786290 is a deficient number, since it is larger than the sum of its proper divisors (26554842022).

29313786290 is a wasteful number, since it uses less digits than its factorization.

29313786290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172434061.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 29313786290 in words is "twenty-nine billion, three hundred thirteen million, seven hundred eighty-six thousand, two hundred ninety".