39895287790220 has 12 divisors (see below), whose sum is σ = 83780104359504. Its totient is φ = 15958115116080.

The previous prime is 39895287790219. The next prime is 39895287790273. The reversal of 39895287790220 is 2209778259893.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997382194736 + ... + 997382194775.

It is an arithmetic number, because the mean of its divisors is an integer number (6981675363292).

Almost surely, 2^{39895287790220} is an apocalyptic number.

It is an amenable number.

39895287790220 is an abundant number, since it is smaller than the sum of its proper divisors (43884816569284).

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

39895287790220 is a wasteful number, since it uses less digits than its factorization.

39895287790220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994764389520 (or 1994764389518 counting only the distinct ones).

The product of its (nonzero) digits is 274337280, while the sum is 71.

The spelling of 39895287790220 in words is "thirty-nine trillion, eight hundred ninety-five billion, two hundred eighty-seven million, seven hundred ninety thousand, two hundred twenty".