29865097838 has 16 divisors (see below), whose sum is σ = 45493986960. Its totient is φ = 14702088000.

The previous prime is 29865097789. The next prime is 29865097897. The reversal of 29865097838 is 83879056892.

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 7 ways as a sum of consecutive naturals, for example, 376823 + ... + 449138.

It is an arithmetic number, because the mean of its divisors is an integer number (2843374185).

Almost surely, 2^29865097838 is an apocalyptic number.

29865097838 is a deficient number, since it is larger than the sum of its proper divisors (15628889122).

29865097838 is a wasteful number, since it uses less digits than its factorization.

29865097838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826243.

The product of its (nonzero) digits is 52254720, while the sum is 65.

The spelling of 29865097838 in words is "twenty-nine billion, eight hundred sixty-five million, ninety-seven thousand, eight hundred thirty-eight".