257734620006 has 16 divisors (see below), whose sum is σ = 515993635584. Its totient is φ = 85824140744.

The previous prime is 257734619941. The next prime is 257734620007. The reversal of 257734620006 is 600026437752.

It is a self number, because there is not a number n which added to its sum of digits gives 257734620006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257734620007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21843426 + ... + 21855221.

It is an arithmetic number, because the mean of its divisors is an integer number (32249602224).

Almost surely, 2^257734620006 is an apocalyptic number.

257734620006 is an abundant number, since it is smaller than the sum of its proper divisors (258259015578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257734620006 is a wasteful number, since it uses less digits than its factorization.

257734620006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43699635.

The product of its (nonzero) digits is 423360, while the sum is 42.

The spelling of 257734620006 in words is "two hundred fifty-seven billion, seven hundred thirty-four million, six hundred twenty thousand, six".