2557428447916 has 12 divisors (see below), whose sum is σ = 4475527256200. Its totient is φ = 1278706374720.

The previous prime is 2557428447913. The next prime is 2557428447919. The reversal of 2557428447916 is 6197448247552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2557428447913) and next prime (2557428447919).

It is not an unprimeable number, because it can be changed into a prime (2557428447913) 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, 1195965 + ... + 2558356.

Almost surely, 2^{2557428447916} is an apocalyptic number.

It is an amenable number.

2557428447916 is a deficient number, since it is larger than the sum of its proper divisors (1918098808284).

2557428447916 is a wasteful number, since it uses less digits than its factorization.

2557428447916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924624 (or 3924622 counting only the distinct ones).

The product of its digits is 135475200, while the sum is 64.

The spelling of 2557428447916 in words is "two trillion, five hundred fifty-seven billion, four hundred twenty-eight million, four hundred forty-seven thousand, nine hundred sixteen".