10001256440444 has 12 divisors (see below), whose sum is σ = 17502642578568. Its totient is φ = 5000501418000.

The previous prime is 10001256440333. The next prime is 10001256440449. The reversal of 10001256440444 is 44404465210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001256440449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31522982 + ... + 31838669.

It is an arithmetic number, because the mean of its divisors is an integer number (1458553548214).

Almost surely, 2^{10001256440444} is an apocalyptic number.

It is an amenable number.

10001256440444 is a deficient number, since it is larger than the sum of its proper divisors (7501386138124).

10001256440444 is a wasteful number, since it uses less digits than its factorization.

10001256440444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63401116 (or 63401114 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

The spelling of 10001256440444 in words is "ten trillion, one billion, two hundred fifty-six million, four hundred forty thousand, four hundred forty-four".