256444051450 has 24 divisors (see below), whose sum is σ = 488078635968. Its totient is φ = 100192093680.

The previous prime is 256444051439. The next prime is 256444051469. The reversal of 256444051450 is 54150444652.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59636002 + ... + 59640301.

It is an arithmetic number, because the mean of its divisors is an integer number (20336609832).

Almost surely, 2^256444051450 is an apocalyptic number.

256444051450 is a deficient number, since it is larger than the sum of its proper divisors (231634584518).

256444051450 is a wasteful number, since it uses less digits than its factorization.

256444051450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119276358 (or 119276353 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

The spelling of 256444051450 in words is "two hundred fifty-six billion, four hundred forty-four million, fifty-one thousand, four hundred fifty".