109993574128451 has 4 divisors (see below), whose sum is σ = 118454618292192. Its totient is φ = 101532529964712.

The previous prime is 109993574128447. The next prime is 109993574128481. The reversal of 109993574128451 is 154821475399901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109993574128451 - 2² = 109993574128447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109993574128481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4230522081851 + ... + 4230522081876.

It is an arithmetic number, because the mean of its divisors is an integer number (29613654573048).

Almost surely, 2^{109993574128451} is an apocalyptic number.

109993574128451 is a deficient number, since it is larger than the sum of its proper divisors (8461044163741).

109993574128451 is an equidigital number, since it uses as much as digits as its factorization.

109993574128451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461044163740.

The product of its (nonzero) digits is 97977600, while the sum is 68.

The spelling of 109993574128451 in words is "one hundred nine trillion, nine hundred ninety-three billion, five hundred seventy-four million, one hundred twenty-eight thousand, four hundred fifty-one".