3720505405144 has 32 divisors (see below), whose sum is σ = 7619508469440. Its totient is φ = 1689053536800.

The previous prime is 3720505405129. The next prime is 3720505405223. The reversal of 3720505405144 is 4415045050273.

It is a junction number, because it is equal to n+sod(n) for n = 3720505405097 and 3720505405106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25994274 + ... + 26137009.

It is an arithmetic number, because the mean of its divisors is an integer number (238109639670).

Almost surely, 2^{3720505405144} is an apocalyptic number.

It is an amenable number.

3720505405144 is an abundant number, since it is smaller than the sum of its proper divisors (3899003064296).

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

3720505405144 is a wasteful number, since it uses less digits than its factorization.

3720505405144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52132111 (or 52132107 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 40.

The spelling of 3720505405144 in words is "three trillion, seven hundred twenty billion, five hundred five million, four hundred five thousand, one hundred forty-four".