10387640043215 has 32 divisors (see below), whose sum is σ = 12843245800320. Its totient is φ = 8059517190144.

The previous prime is 10387640043199. The next prime is 10387640043311. The reversal of 10387640043215 is 51234004678301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10387640043215 - 2⁴ = 10387640043199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 281344526 + ... + 281381444.

It is an arithmetic number, because the mean of its divisors is an integer number (401351431260).

Almost surely, 2^{10387640043215} is an apocalyptic number.

10387640043215 is a deficient number, since it is larger than the sum of its proper divisors (2455605757105).

10387640043215 is a wasteful number, since it uses less digits than its factorization.

10387640043215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41811.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 10387640043215 in words is "ten trillion, three hundred eighty-seven billion, six hundred forty million, forty-three thousand, two hundred fifteen".