7538461538464 has 12 divisors (see below), whose sum is σ = 14841346153914. Its totient is φ = 3769230769216.

The previous prime is 7538461538453. The next prime is 7538461538467. The reversal of 7538461538464 is 4648351648357.

It can be written as a sum of positive squares in only one way, i.e., 7248522366864 + 289939171600 = 2692308^2 + 538460^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7538461538396 and 7538461538405.

It is not an unprimeable number, because it can be changed into a prime (7538461538467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117788461507 + ... + 117788461570.

Almost surely, 2^{7538461538464} is an apocalyptic number.

It is an amenable number.

7538461538464 is a deficient number, since it is larger than the sum of its proper divisors (7302884615450).

7538461538464 is a wasteful number, since it uses less digits than its factorization.

7538461538464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235576923087 (or 235576923079 counting only the distinct ones).

The product of its digits is 232243200, while the sum is 64.

The spelling of 7538461538464 in words is "seven trillion, five hundred thirty-eight billion, four hundred sixty-one million, five hundred thirty-eight thousand, four hundred sixty-four".