2557305389348 has 24 divisors (see below), whose sum is σ = 4775357586720. Its totient is φ = 1194761275200.

The previous prime is 2557305389341. The next prime is 2557305389377. The reversal of 2557305389348 is 8439835037552.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2557305389341) 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, 230465378 + ... + 230476473.

It is an arithmetic number, because the mean of its divisors is an integer number (198973232780).

Almost surely, 2^{2557305389348} is an apocalyptic number.

It is an amenable number.

2557305389348 is a deficient number, since it is larger than the sum of its proper divisors (2218052197372).

2557305389348 is a wasteful number, since it uses less digits than its factorization.

2557305389348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460941947 (or 460941945 counting only the distinct ones).

The product of its (nonzero) digits is 108864000, while the sum is 62.

The spelling of 2557305389348 in words is "two trillion, five hundred fifty-seven billion, three hundred five million, three hundred eighty-nine thousand, three hundred forty-eight".