2557381321510 has 16 divisors (see below), whose sum is σ = 4655008699200. Its totient is φ = 1011458679616.

The previous prime is 2557381321487. The next prime is 2557381321513. The reversal of 2557381321510 is 151231837552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557381321513) 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, 1436730190 + ... + 1436731969.

It is an arithmetic number, because the mean of its divisors is an integer number (290938043700).

Almost surely, 2^{2557381321510} is an apocalyptic number.

2557381321510 is a deficient number, since it is larger than the sum of its proper divisors (2097627377690).

2557381321510 is a wasteful number, since it uses less digits than its factorization.

2557381321510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873462255.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 2557381321510 in words is "two trillion, five hundred fifty-seven billion, three hundred eighty-one million, three hundred twenty-one thousand, five hundred ten".