144640256874 has 16 divisors (see below), whose sum is σ = 289285408800. Its totient is φ = 48212603120.

The previous prime is 144640256867. The next prime is 144640256897. The reversal of 144640256874 is 478652046441.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262084 + ... + 598304.

It is an arithmetic number, because the mean of its divisors is an integer number (18080338050).

Almost surely, 2^144640256874 is an apocalyptic number.

144640256874 is an abundant number, since it is smaller than the sum of its proper divisors (144645151926).

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

144640256874 is a wasteful number, since it uses less digits than its factorization.

144640256874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407925.

The product of its (nonzero) digits is 5160960, while the sum is 51.

The spelling of 144640256874 in words is "one hundred forty-four billion, six hundred forty million, two hundred fifty-six thousand, eight hundred seventy-four".