1039216379781 has 8 divisors (see below), whose sum is σ = 1393631215200. Its totient is φ = 688806232112.

The previous prime is 1039216379759. The next prime is 1039216379821. The reversal of 1039216379781 is 1879736129301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1039216379781 - 2⁶ = 1039216379717 is a prime.

It is a super-2 number, since 2×1039216379781² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1039216379701) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1001171331 + ... + 1001172368.

It is an arithmetic number, because the mean of its divisors is an integer number (174203901900).

Almost surely, 2^{1039216379781} is an apocalyptic number.

It is an amenable number.

1039216379781 is a deficient number, since it is larger than the sum of its proper divisors (354414835419).

1039216379781 is a wasteful number, since it uses less digits than its factorization.

1039216379781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002343875.

The product of its (nonzero) digits is 3429216, while the sum is 57.

The spelling of 1039216379781 in words is "one trillion, thirty-nine billion, two hundred sixteen million, three hundred seventy-nine thousand, seven hundred eighty-one".