1021982139357 has 8 divisors (see below), whose sum is σ = 1421888193984. Its totient is φ = 651698755488.

The previous prime is 1021982139349. The next prime is 1021982139419. The reversal of 1021982139357 is 7539312891201.

It is a happy number.

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

It is not a de Polignac number, because 1021982139357 - 2³ = 1021982139349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021982239357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7405667608 + ... + 7405667745.

It is an arithmetic number, because the mean of its divisors is an integer number (177736024248).

Almost surely, 2^{1021982139357} is an apocalyptic number.

It is an amenable number.

1021982139357 is a deficient number, since it is larger than the sum of its proper divisors (399906054627).

1021982139357 is a wasteful number, since it uses less digits than its factorization.

1021982139357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14811335379.

The product of its (nonzero) digits is 816480, while the sum is 51.

The spelling of 1021982139357 in words is "one trillion, twenty-one billion, nine hundred eighty-two million, one hundred thirty-nine thousand, three hundred fifty-seven".