1979796038528 has 128 divisors (see below), whose sum is σ = 4920527001600. Its totient is φ = 770850846720.

The previous prime is 1979796038503. The next prime is 1979796038531. The reversal of 1979796038528 is 8258306979791.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15380258 + ... + 15508446.

It is an arithmetic number, because the mean of its divisors is an integer number (38441617200).

Almost surely, 2^{1979796038528} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979796038528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460263500800).

1979796038528 is an abundant number, since it is smaller than the sum of its proper divisors (2940730963072).

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

1979796038528 is a wasteful number, since it uses less digits than its factorization.

1979796038528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129788 (or 129776 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 74.

The spelling of 1979796038528 in words is "one trillion, nine hundred seventy-nine billion, seven hundred ninety-six million, thirty-eight thousand, five hundred twenty-eight".