7439815481109 has 8 divisors (see below), whose sum is σ = 10821549790752. Its totient is φ = 4508979079440.

The previous prime is 7439815481101. The next prime is 7439815481171. The reversal of 7439815481109 is 9011845189347.

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

It is not a de Polignac number, because 7439815481109 - 2³ = 7439815481101 is a prime.

It is a super-2 number, since 2×7439815481109² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7439815481101) 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, 112724476954 + ... + 112724477019.

It is an arithmetic number, because the mean of its divisors is an integer number (1352693723844).

Almost surely, 2^{7439815481109} is an apocalyptic number.

It is an amenable number.

7439815481109 is a deficient number, since it is larger than the sum of its proper divisors (3381734309643).

7439815481109 is a wasteful number, since it uses less digits than its factorization.

7439815481109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225448953987.

The product of its (nonzero) digits is 8709120, while the sum is 60.

The spelling of 7439815481109 in words is "seven trillion, four hundred thirty-nine billion, eight hundred fifteen million, four hundred eighty-one thousand, one hundred nine".