256701130004542 has 8 divisors (see below), whose sum is σ = 386084005182216. Its totient is φ = 128006461610472.

The previous prime is 256701130004491. The next prime is 256701130004549. The reversal of 256701130004542 is 245400031107652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 256701130004495 and 256701130004504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256701130004549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172051694968 + ... + 172051696459.

It is an arithmetic number, because the mean of its divisors is an integer number (48260500647777).

Almost surely, 2^{256701130004542} is an apocalyptic number.

256701130004542 is a deficient number, since it is larger than the sum of its proper divisors (129382875177674).

256701130004542 is a wasteful number, since it uses less digits than its factorization.

256701130004542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344103391802.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 256701130004542 in words is "two hundred fifty-six trillion, seven hundred one billion, one hundred thirty million, four thousand, five hundred forty-two".