1390078632071 has 4 divisors (see below), whose sum is σ = 1390284180552. Its totient is φ = 1389873083592.

The previous prime is 1390078632017. The next prime is 1390078632101. The reversal of 1390078632071 is 1702368700931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1390078632071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390078632011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102764096 + ... + 102777621.

It is an arithmetic number, because the mean of its divisors is an integer number (347571045138).

Almost surely, 2^{1390078632071} is an apocalyptic number.

1390078632071 is a deficient number, since it is larger than the sum of its proper divisors (205548481).

1390078632071 is an equidigital number, since it uses as much as digits as its factorization.

1390078632071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205548480.

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 1390078632071 in words is "one trillion, three hundred ninety billion, seventy-eight million, six hundred thirty-two thousand, seventy-one".