109719479815 has 16 divisors (see below), whose sum is σ = 144249240096. Its totient is φ = 79453504000.

The previous prime is 109719479801. The next prime is 109719479819. The reversal of 109719479815 is 518974917901.

It is not a de Polignac number, because 109719479815 - 2¹⁷ = 109719348743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109719479819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4268086 + ... + 4293715.

It is an arithmetic number, because the mean of its divisors is an integer number (9015577506).

Almost surely, 2^109719479815 is an apocalyptic number.

109719479815 is a deficient number, since it is larger than the sum of its proper divisors (34529760281).

109719479815 is a wasteful number, since it uses less digits than its factorization.

109719479815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562050.

The product of its (nonzero) digits is 5715360, while the sum is 61.

The spelling of 109719479815 in words is "one hundred nine billion, seven hundred nineteen million, four hundred seventy-nine thousand, eight hundred fifteen".