7816636138145 has 8 divisors (see below), whose sum is σ = 9380132346240. Its totient is φ = 6253196256880.

The previous prime is 7816636138123. The next prime is 7816636138159. The reversal of 7816636138145 is 5418316366187.

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

It is not a de Polignac number, because 7816636138145 - 2¹⁴ = 7816636121761 is a prime.

It is a super-2 number, since 2×7816636138145² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13775801 + ... + 14331990.

It is an arithmetic number, because the mean of its divisors is an integer number (1172516543280).

Almost surely, 2^{7816636138145} is an apocalyptic number.

It is an amenable number.

7816636138145 is a deficient number, since it is larger than the sum of its proper divisors (1563496208095).

7816636138145 is a wasteful number, since it uses less digits than its factorization.

7816636138145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163415.

The product of its digits is 17418240, while the sum is 59.

The spelling of 7816636138145 in words is "seven trillion, eight hundred sixteen billion, six hundred thirty-six million, one hundred thirty-eight thousand, one hundred forty-five".