1457311668 has 12 divisors (see below), whose sum is σ = 3400393920. Its totient is φ = 485770552.

The previous prime is 1457311663. The next prime is 1457311673. The reversal of 1457311668 is 8661137541.

It is an interprime number because it is at equal distance from previous prime (1457311663) and next prime (1457311673).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457311663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60721308 + ... + 60721331.

It is an arithmetic number, because the mean of its divisors is an integer number (283366160).

Almost surely, 2^1457311668 is an apocalyptic number.

It is an amenable number.

1457311668 is an abundant number, since it is smaller than the sum of its proper divisors (1943082252).

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

1457311668 is a wasteful number, since it uses less digits than its factorization.

1457311668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121442646 (or 121442644 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 1457311668 is about 38174.7517084263. The cubic root of 1457311668 is about 1133.7504715537.

The spelling of 1457311668 in words is "one billion, four hundred fifty-seven million, three hundred eleven thousand, six hundred sixty-eight".