7206539123945 has 32 divisors (see below), whose sum is σ = 10113389256960. Its totient is φ = 4826565676800.

The previous prime is 7206539123893. The next prime is 7206539123951. The reversal of 7206539123945 is 5493219356027.

It is not a de Polignac number, because 7206539123945 - 2⁶ = 7206539123881 is a prime.

It is a super-2 number, since 2×7206539123945² (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 31 ways as a sum of consecutive naturals, for example, 100349111 + ... + 100420899.

It is an arithmetic number, because the mean of its divisors is an integer number (316043414280).

Almost surely, 2^{7206539123945} is an apocalyptic number.

It is an amenable number.

7206539123945 is a deficient number, since it is larger than the sum of its proper divisors (2906850133015).

7206539123945 is a wasteful number, since it uses less digits than its factorization.

7206539123945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138545.

The product of its (nonzero) digits is 12247200, while the sum is 56.

The spelling of 7206539123945 in words is "seven trillion, two hundred six billion, five hundred thirty-nine million, one hundred twenty-three thousand, nine hundred forty-five".