7481531518045 has 64 divisors (see below), whose sum is σ = 9762982225920. Its totient is φ = 5471127244800.

The previous prime is 7481531518037. The next prime is 7481531518051. The reversal of 7481531518045 is 5408151351847.

It is not a de Polignac number, because 7481531518045 - 2³ = 7481531518037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7481531517983 and 7481531518001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5170373512 + ... + 5170374958.

It is an arithmetic number, because the mean of its divisors is an integer number (152546597280).

Almost surely, 2^{7481531518045} is an apocalyptic number.

It is an amenable number.

7481531518045 is a deficient number, since it is larger than the sum of its proper divisors (2281450707875).

7481531518045 is a wasteful number, since it uses less digits than its factorization.

7481531518045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 2688000, while the sum is 52.

The spelling of 7481531518045 in words is "seven trillion, four hundred eighty-one billion, five hundred thirty-one million, five hundred eighteen thousand, forty-five".