1540872613099 has 8 divisors (see below), whose sum is σ = 1541550104640. Its totient is φ = 1540195233216.

The previous prime is 1540872613081. The next prime is 1540872613103. The reversal of 1540872613099 is 9903162780451.

It is a happy number.

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 1540872613099 - 2²⁵ = 1540839058667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540872611099) 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, 38725687 + ... + 38765455.

It is an arithmetic number, because the mean of its divisors is an integer number (192693763080).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1540872613099 = 3081745226198, but 3⋅1540872613099 = 4622617839297 is not.

Almost surely, 2^{1540872613099} is an apocalyptic number.

1540872613099 is a deficient number, since it is larger than the sum of its proper divisors (677491541).

1540872613099 is a wasteful number, since it uses less digits than its factorization.

1540872613099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55829.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1540872613099 in words is "one trillion, five hundred forty billion, eight hundred seventy-two million, six hundred thirteen thousand, ninety-nine".