1979963922240 has 168 divisors, whose sum is σ = 7062482700000. Its totient is φ = 527990358528.

The previous prime is 1979963922197. The next prime is 1979963922241. The reversal of 1979963922240 is 422293699791.

1979963922240 is a `hidden beast` number, since 19 + 7 + 9 + 9 + 6 + 392 + 224 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1979963922241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12653490 + ... + 12809009.

It is an arithmetic number, because the mean of its divisors is an integer number (42038587500).

Almost surely, 2^{1979963922240} is an apocalyptic number.

1979963922240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1979963922240 is an abundant number, since it is smaller than the sum of its proper divisors (5082518777760).

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

1979963922240 is an equidigital number, since it uses as much as digits as its factorization.

1979963922240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25462531 (or 25462509 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 1979963922240 in words is "one trillion, nine hundred seventy-nine billion, nine hundred sixty-three million, nine hundred twenty-two thousand, two hundred forty".