256734320314046 has 4 divisors (see below), whose sum is σ = 385101480471072. Its totient is φ = 128367160157022.

The previous prime is 256734320314037. The next prime is 256734320314079. The reversal of 256734320314046 is 640413023437652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×256734320314046² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256734320313985 and 256734320314003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64183580078510 + ... + 64183580078513.

It is an arithmetic number, because the mean of its divisors is an integer number (96275370117768).

Almost surely, 2^{256734320314046} is an apocalyptic number.

256734320314046 is a deficient number, since it is larger than the sum of its proper divisors (128367160157026).

256734320314046 is a wasteful number, since it uses less digits than its factorization.

256734320314046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128367160157025.

The product of its (nonzero) digits is 8709120, while the sum is 50.

The spelling of 256734320314046 in words is "two hundred fifty-six trillion, seven hundred thirty-four billion, three hundred twenty million, three hundred fourteen thousand, forty-six".