2195980197870 has 16 divisors (see below), whose sum is σ = 5270352474960. Its totient is φ = 585594719424.

The previous prime is 2195980197799. The next prime is 2195980197881. The reversal of 2195980197870 is 787910895912.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36599669935 + ... + 36599669994.

It is an arithmetic number, because the mean of its divisors is an integer number (329397029685).

Almost surely, 2^{2195980197870} is an apocalyptic number.

2195980197870 is an abundant number, since it is smaller than the sum of its proper divisors (3074372277090).

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

2195980197870 is a wasteful number, since it uses less digits than its factorization.

2195980197870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73199339939.

The product of its (nonzero) digits is 22861440, while the sum is 66.

The spelling of 2195980197870 in words is "two trillion, one hundred ninety-five billion, nine hundred eighty million, one hundred ninety-seven thousand, eight hundred seventy".