4051349869812 has 144 divisors (see below), whose sum is σ = 11213032521600. Its totient is φ = 1134918086400.

The previous prime is 4051349869783. The next prime is 4051349869813. The reversal of 4051349869812 is 2189689431504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051349869813) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7288314 + ... + 7824462.

It is an arithmetic number, because the mean of its divisors is an integer number (77868281400).

Almost surely, 2^{4051349869812} is an apocalyptic number.

4051349869812 is a gapful number since it is divisible by the number (42) 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 4051349869812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5606516260800).

4051349869812 is an abundant number, since it is smaller than the sum of its proper divisors (7161682651788).

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

4051349869812 is a wasteful number, since it uses less digits than its factorization.

4051349869812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536422 (or 536413 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 4051349869812 in words is "four trillion, fifty-one billion, three hundred forty-nine million, eight hundred sixty-nine thousand, eight hundred twelve".