29265648438 has 32 divisors (see below), whose sum is σ = 64223028576. Its totient is φ = 8834911488.

The previous prime is 29265648421. The next prime is 29265648449. The reversal of 29265648438 is 83484656292.

It is a super-2 number, since 2×29265648438² (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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3535495 + ... + 3543762.

It is an arithmetic number, because the mean of its divisors is an integer number (2006969643).

Almost surely, 2^29265648438 is an apocalyptic number.

29265648438 is an abundant number, since it is smaller than the sum of its proper divisors (34957380138).

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

29265648438 is a wasteful number, since it uses less digits than its factorization.

29265648438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7079328.

The product of its digits is 19906560, while the sum is 57.

The spelling of 29265648438 in words is "twenty-nine billion, two hundred sixty-five million, six hundred forty-eight thousand, four hundred thirty-eight".