3494969991000 has 1024 divisors, whose sum is σ = 13410109440000. Its totient is φ = 838081728000.

The previous prime is 3494969990999. The next prime is 3494969991011. The reversal of 3494969991000 is 1999694943.

3494969991000 is a `hidden beast` number, since 3 + 49 + 496 + 9 + 99 + 10 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1640059935 + ... + 1640062065.

It is an arithmetic number, because the mean of its divisors is an integer number (13095810000).

Almost surely, 2^{3494969991000} is an apocalyptic number.

3494969991000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3494969991000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6705054720000).

3494969991000 is an abundant number, since it is smaller than the sum of its proper divisors (9915139449000).

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

3494969991000 is a wasteful number, since it uses less digits than its factorization.

3494969991000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 17006112, while the sum is 63.

The spelling of 3494969991000 in words is "three trillion, four hundred ninety-four billion, nine hundred sixty-nine million, nine hundred ninety-one thousand".