105438961493 has 8 divisors (see below), whose sum is σ = 105532876800. Its totient is φ = 105345091728.

The previous prime is 105438961489. The next prime is 105438961553. The reversal of 105438961493 is 394169834501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105438961493 - 2² = 105438961489 is a prime.

It is a super-2 number, since 2×105438961493² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105438961423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5901668 + ... + 5919506.

It is an arithmetic number, because the mean of its divisors is an integer number (13191609600).

Almost surely, 2^105438961493 is an apocalyptic number.

It is an amenable number.

105438961493 is a deficient number, since it is larger than the sum of its proper divisors (93915307).

105438961493 is a wasteful number, since it uses less digits than its factorization.

105438961493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22771.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 105438961493 in words is "one hundred five billion, four hundred thirty-eight million, nine hundred sixty-one thousand, four hundred ninety-three".