257210362015145 has 32 divisors (see below), whose sum is σ = 387361858093056. Its totient is φ = 159277079736000.

The previous prime is 257210362015073. The next prime is 257210362015223. The reversal of 257210362015145 is 541510263012752.

It is not a de Polignac number, because 257210362015145 - 2¹² = 257210362011049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 257210362015096 and 257210362015105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2212123529 + ... + 2212239798.

It is an arithmetic number, because the mean of its divisors is an integer number (12105058065408).

Almost surely, 2^{257210362015145} is an apocalyptic number.

It is an amenable number.

257210362015145 is a deficient number, since it is larger than the sum of its proper divisors (130151496077911).

257210362015145 is a wasteful number, since it uses less digits than its factorization.

257210362015145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424363501.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 257210362015145 in words is "two hundred fifty-seven trillion, two hundred ten billion, three hundred sixty-two million, fifteen thousand, one hundred forty-five".