8454144257 has 8 divisors (see below), whose sum is σ = 9105648384. Its totient is φ = 7802809488.

The previous prime is 8454144253. The next prime is 8454144277. The reversal of 8454144257 is 7524414548.

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

It is a cyclic number.

It is not a de Polignac number, because 8454144257 - 2² = 8454144253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8454144253) 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, 72998 + ... + 149120.

It is an arithmetic number, because the mean of its divisors is an integer number (1138206048).

Almost surely, 2^8454144257 is an apocalyptic number.

It is an amenable number.

8454144257 is a deficient number, since it is larger than the sum of its proper divisors (651504127).

8454144257 is a wasteful number, since it uses less digits than its factorization.

8454144257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84679.

The product of its digits is 716800, while the sum is 44.

The square root of 8454144257 is about 91946.4205774211. The cubic root of 8454144257 is about 2037.1509839761.

The spelling of 8454144257 in words is "eight billion, four hundred fifty-four million, one hundred forty-four thousand, two hundred fifty-seven".