6457331428561 has 8 divisors (see below), whose sum is σ = 6954083478720. Its totient is φ = 5960584270992.

The previous prime is 6457331428543. The next prime is 6457331428571. The reversal of 6457331428561 is 1658241337546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-6457331428561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6457331428571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1793610 + ... + 4016428.

It is an arithmetic number, because the mean of its divisors is an integer number (869260434840).

Almost surely, 2^{6457331428561} is an apocalyptic number.

It is an amenable number.

6457331428561 is a deficient number, since it is larger than the sum of its proper divisors (496752050159).

6457331428561 is a wasteful number, since it uses less digits than its factorization.

6457331428561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446295.

The product of its digits is 14515200, while the sum is 55.

The spelling of 6457331428561 in words is "six trillion, four hundred fifty-seven billion, three hundred thirty-one million, four hundred twenty-eight thousand, five hundred sixty-one".