7455453515538 has 24 divisors (see below), whose sum is σ = 17345340832752. Its totient is φ = 2130129575784.

The previous prime is 7455453515501. The next prime is 7455453515561. The reversal of 7455453515538 is 8355153545547.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12679342420 + ... + 12679343007.

It is an arithmetic number, because the mean of its divisors is an integer number (722722534698).

Almost surely, 2^{7455453515538} is an apocalyptic number.

7455453515538 is an abundant number, since it is smaller than the sum of its proper divisors (9889887317214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7455453515538 is a wasteful number, since it uses less digits than its factorization.

7455453515538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25358685446 (or 25358685439 counting only the distinct ones).

The product of its digits is 126000000, while the sum is 60.

The spelling of 7455453515538 in words is "seven trillion, four hundred fifty-five billion, four hundred fifty-three million, five hundred fifteen thousand, five hundred thirty-eight".