7138581772465 has 128 divisors (see below), whose sum is σ = 10240104333312. Its totient is φ = 4709392773120.

The previous prime is 7138581772457. The next prime is 7138581772477. The reversal of 7138581772465 is 5642771858317.

It is a happy number.

It is not a de Polignac number, because 7138581772465 - 2³ = 7138581772457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7138581772397 and 7138581772406.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4596639129 + ... + 4596640681.

It is an arithmetic number, because the mean of its divisors is an integer number (80000815104).

Almost surely, 2^{7138581772465} is an apocalyptic number.

It is an amenable number.

7138581772465 is a deficient number, since it is larger than the sum of its proper divisors (3101522560847).

7138581772465 is a wasteful number, since it uses less digits than its factorization.

7138581772465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159.

The product of its digits is 79027200, while the sum is 64.

The spelling of 7138581772465 in words is "seven trillion, one hundred thirty-eight billion, five hundred eighty-one million, seven hundred seventy-two thousand, four hundred sixty-five".