6943289841990 has 48 divisors (see below), whose sum is σ = 18052988857488. Its totient is φ = 1851499315008.

The previous prime is 6943289841973. The next prime is 6943289842009. The reversal of 6943289841990 is 991489823496.

6943289841990 is a `hidden beast` number, since 6 + 9 + 4 + 32 + 8 + 98 + 419 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2911032 + ... + 4728708.

It is an arithmetic number, because the mean of its divisors is an integer number (376103934531).

Almost surely, 2^{6943289841990} is an apocalyptic number.

6943289841990 is an abundant number, since it is smaller than the sum of its proper divisors (11109699015498).

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

6943289841990 is a wasteful number, since it uses less digits than its factorization.

6943289841990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860133 (or 1860130 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 72.

The spelling of 6943289841990 in words is "six trillion, nine hundred forty-three billion, two hundred eighty-nine million, eight hundred forty-one thousand, nine hundred ninety".