15109640400044 has 6 divisors (see below), whose sum is σ = 26441870700084. Its totient is φ = 7554820200020.

The previous prime is 15109640400031. The next prime is 15109640400083. The reversal of 15109640400044 is 44000404690151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15109640399980 and 15109640400007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1888705050002 + ... + 1888705050009.

It is an arithmetic number, because the mean of its divisors is an integer number (4406978450014).

Almost surely, 2^{15109640400044} is an apocalyptic number.

It is an amenable number.

15109640400044 is a deficient number, since it is larger than the sum of its proper divisors (11332230300040).

15109640400044 is a wasteful number, since it uses less digits than its factorization.

15109640400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777410100015 (or 3777410100013 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 15109640400044 in words is "fifteen trillion, one hundred nine billion, six hundred forty million, four hundred thousand, forty-four".