3721853384420 has 12 divisors (see below), whose sum is σ = 7815892107324. Its totient is φ = 1488741353760.

The previous prime is 3721853384393. The next prime is 3721853384467. The reversal of 3721853384420 is 244833581273.

It can be written as a sum of positive squares in 2 ways, for example, as 1510499992576 + 2211353391844 = 1229024^2 + 1487062^2 .

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, 93046334591 + ... + 93046334630.

It is an arithmetic number, because the mean of its divisors is an integer number (651324342277).

Almost surely, 2^{3721853384420} is an apocalyptic number.

It is an amenable number.

3721853384420 is an abundant number, since it is smaller than the sum of its proper divisors (4094038722904).

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

3721853384420 is a wasteful number, since it uses less digits than its factorization.

3721853384420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186092669230 (or 186092669228 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 3721853384420 in words is "three trillion, seven hundred twenty-one billion, eight hundred fifty-three million, three hundred eighty-four thousand, four hundred twenty".