1979700263808 has 256 divisors, whose sum is σ = 5474993126400. Its totient is φ = 633316147200.

The previous prime is 1979700263759. The next prime is 1979700263837. The reversal of 1979700263808 is 8083620079791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 481559673 + ... + 481563783.

It is an arithmetic number, because the mean of its divisors is an integer number (21386691900).

Almost surely, 2^{1979700263808} 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 1979700263808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2737496563200).

1979700263808 is an abundant number, since it is smaller than the sum of its proper divisors (3495292862592).

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

1979700263808 is a wasteful number, since it uses less digits than its factorization.

1979700263808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661 (or 4649 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 1979700263808 in words is "one trillion, nine hundred seventy-nine billion, seven hundred million, two hundred sixty-three thousand, eight hundred eight".