20002879335648 has 96 divisors (see below), whose sum is σ = 57289816950912. Its totient is φ = 6060542681600.

The previous prime is 20002879335643. The next prime is 20002879335653. The reversal of 20002879335648 is 84653397820002.

It is an interprime number because it is at equal distance from previous prime (20002879335643) and next prime (20002879335653).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002879335643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5395390 + ... + 8313602.

It is an arithmetic number, because the mean of its divisors is an integer number (596768926572).

Almost surely, 2^{20002879335648} is an apocalyptic number.

It is an amenable number.

20002879335648 is an abundant number, since it is smaller than the sum of its proper divisors (37286937615264).

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

20002879335648 is a wasteful number, since it uses less digits than its factorization.

20002879335648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924728 (or 2924720 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 20002879335648 in words is "twenty trillion, two billion, eight hundred seventy-nine million, three hundred thirty-five thousand, six hundred forty-eight".