109567779342 has 64 divisors (see below), whose sum is σ = 256788499968. Its totient is φ = 30513024000.

The previous prime is 109567779319. The next prime is 109567779353. The reversal of 109567779342 is 243977765901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1849542 + ... + 1907862.

It is an arithmetic number, because the mean of its divisors is an integer number (4012320312).

Almost surely, 2^109567779342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109567779342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128394249984).

109567779342 is an abundant number, since it is smaller than the sum of its proper divisors (147220720626).

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

109567779342 is a wasteful number, since it uses less digits than its factorization.

109567779342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59465.

The product of its (nonzero) digits is 20003760, while the sum is 60.

The spelling of 109567779342 in words is "one hundred nine billion, five hundred sixty-seven million, seven hundred seventy-nine thousand, three hundred forty-two".