1457839886649 has 4 divisors (see below), whose sum is σ = 1943786515536. Its totient is φ = 971893257764.

The previous prime is 1457839886647. The next prime is 1457839886669. The reversal of 1457839886649 is 9466889387541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1457839886649 - 2¹ = 1457839886647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1457839886647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242973314439 + ... + 242973314444.

It is an arithmetic number, because the mean of its divisors is an integer number (485946628884).

Almost surely, 2^{1457839886649} is an apocalyptic number.

It is an amenable number.

1457839886649 is a deficient number, since it is larger than the sum of its proper divisors (485946628887).

1457839886649 is an equidigital number, since it uses as much as digits as its factorization.

1457839886649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485946628886.

The product of its digits is 2508226560, while the sum is 78.

The spelling of 1457839886649 in words is "one trillion, four hundred fifty-seven billion, eight hundred thirty-nine million, eight hundred eighty-six thousand, six hundred forty-nine".