1457657947648 has 40 divisors (see below), whose sum is σ = 3328535902032. Its totient is φ = 624710547456.

The previous prime is 1457657947619. The next prime is 1457657947651. The reversal of 1457657947648 is 8467497567541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203352715 + ... + 203359882.

Almost surely, 2^{1457657947648} is an apocalyptic number.

It is an amenable number.

1457657947648 is an abundant number, since it is smaller than the sum of its proper divisors (1870877954384).

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

1457657947648 is an frugal number, since it uses more digits than its factorization.

1457657947648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406712622 (or 406712606 counting only the distinct ones).

The product of its digits is 1422489600, while the sum is 73.

The spelling of 1457657947648 in words is "one trillion, four hundred fifty-seven billion, six hundred fifty-seven million, nine hundred forty-seven thousand, six hundred forty-eight".