71444257630455 has 16 divisors (see below), whose sum is σ = 114683160138624. Its totient is φ = 37979488092960.

The previous prime is 71444257630441. The next prime is 71444257630507. The reversal of 71444257630455 is 55403675244417.

It is not a de Polignac number, because 71444257630455 - 2¹³ = 71444257622263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71444257630395 and 71444257630404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7757243781 + ... + 7757252990.

It is an arithmetic number, because the mean of its divisors is an integer number (7167697508664).

Almost surely, 2^{71444257630455} is an apocalyptic number.

71444257630455 is a deficient number, since it is larger than the sum of its proper divisors (43238902508169).

71444257630455 is a wasteful number, since it uses less digits than its factorization.

71444257630455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15514497086.

The product of its (nonzero) digits is 56448000, while the sum is 57.

The spelling of 71444257630455 in words is "seventy-one trillion, four hundred forty-four billion, two hundred fifty-seven million, six hundred thirty thousand, four hundred fifty-five".