2071396643988 has 48 divisors (see below), whose sum is σ = 5525799229440. Its totient is φ = 591605307744.

The previous prime is 2071396643977. The next prime is 2071396644001. The reversal of 2071396643988 is 8893466931702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4406328 + ... + 4853711.

It is an arithmetic number, because the mean of its divisors is an integer number (115120817280).

Almost surely, 2^{2071396643988} is an apocalyptic number.

2071396643988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2071396643988 is an abundant number, since it is smaller than the sum of its proper divisors (3454402585452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2071396643988 is a wasteful number, since it uses less digits than its factorization.

2071396643988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9262716 (or 9262714 counting only the distinct ones).

The product of its (nonzero) digits is 94058496, while the sum is 66.

The spelling of 2071396643988 in words is "two trillion, seventy-one billion, three hundred ninety-six million, six hundred forty-three thousand, nine hundred eighty-eight".