109139738464 has 24 divisors (see below), whose sum is σ = 217457646840. Its totient is φ = 53912399616.

The previous prime is 109139738447. The next prime is 109139738473. The reversal of 109139738464 is 464837931901.

It is a super-2 number, since 2×109139738464² (a number of 23 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 3 ways as a sum of consecutive naturals, for example, 20543229 + ... + 20548540.

It is an arithmetic number, because the mean of its divisors is an integer number (9060735285).

Almost surely, 2^109139738464 is an apocalyptic number.

It is an amenable number.

109139738464 is a deficient number, since it is larger than the sum of its proper divisors (108317908376).

109139738464 is an equidigital number, since it uses as much as digits as its factorization.

109139738464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41091862 (or 41091854 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 109139738464 in words is "one hundred nine billion, one hundred thirty-nine million, seven hundred thirty-eight thousand, four hundred sixty-four".