109261520742 has 16 divisors (see below), whose sum is σ = 238388772672. Its totient is φ = 33109551720.

The previous prime is 109261520713. The next prime is 109261520761. The reversal of 109261520742 is 247025162901.

It is a self number, because there is not a number n which added to its sum of digits gives 109261520742.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827738728 + ... + 827738859.

It is an arithmetic number, because the mean of its divisors is an integer number (14899298292).

Almost surely, 2^109261520742 is an apocalyptic number.

109261520742 is an abundant number, since it is smaller than the sum of its proper divisors (129127251930).

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

109261520742 is a wasteful number, since it uses less digits than its factorization.

109261520742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655477603.

The product of its (nonzero) digits is 60480, while the sum is 39.

It can be divided in two parts, 109261 and 520742, that added together give a triangular number (630003 = T₁₁₂₂).

The spelling of 109261520742 in words is "one hundred nine billion, two hundred sixty-one million, five hundred twenty thousand, seven hundred forty-two".