3720400050520 has 32 divisors (see below), whose sum is σ = 8452170997920. Its totient is φ = 1473711863040.

The previous prime is 3720400050517. The next prime is 3720400050533. The reversal of 3720400050520 is 250500040273.

3720400050520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 451500741 + ... + 451508980.

It is an arithmetic number, because the mean of its divisors is an integer number (264130343685).

Almost surely, 2^{3720400050520} is an apocalyptic number.

It is an amenable number.

3720400050520 is an abundant number, since it is smaller than the sum of its proper divisors (4731770947400).

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

3720400050520 is a wasteful number, since it uses less digits than its factorization.

3720400050520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903009835 (or 903009831 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

Adding to 3720400050520 its reverse (250500040273), we get a palindrome (3970900090793).

The spelling of 3720400050520 in words is "three trillion, seven hundred twenty billion, four hundred million, fifty thousand, five hundred twenty".