7257342445145 has 24 divisors (see below), whose sum is σ = 9590085720000. Its totient is φ = 5268433175616.

The previous prime is 7257342445123. The next prime is 7257342445153. The reversal of 7257342445145 is 5415442437527.

It is not a de Polignac number, because 7257342445145 - 2⁸ = 7257342444889 is a prime.

It is a super-2 number, since 2×7257342445145² (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 23 ways as a sum of consecutive naturals, for example, 72734645 + ... + 72834354.

It is an arithmetic number, because the mean of its divisors is an integer number (399586905000).

Almost surely, 2^{7257342445145} is an apocalyptic number.

It is an amenable number.

7257342445145 is a deficient number, since it is larger than the sum of its proper divisors (2332743274855).

7257342445145 is a wasteful number, since it uses less digits than its factorization.

7257342445145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145569089 (or 145569076 counting only the distinct ones).

The product of its digits is 18816000, while the sum is 53.

The spelling of 7257342445145 in words is "seven trillion, two hundred fifty-seven billion, three hundred forty-two million, four hundred forty-five thousand, one hundred forty-five".