269191137890 has 32 divisors (see below), whose sum is σ = 490537240704. Its totient is φ = 106349160960.

The previous prime is 269191137863. The next prime is 269191137907. The reversal of 269191137890 is 98731191962.

269191137890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 193667 + ... + 758873.

It is an arithmetic number, because the mean of its divisors is an integer number (15329288772).

Almost surely, 2^269191137890 is an apocalyptic number.

269191137890 is a deficient number, since it is larger than the sum of its proper divisors (221346102814).

269191137890 is a wasteful number, since it uses less digits than its factorization.

269191137890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565802.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 269191137890 in words is "two hundred sixty-nine billion, one hundred ninety-one million, one hundred thirty-seven thousand, eight hundred ninety".