3720540705387 has 32 divisors (see below), whose sum is σ = 5786763669504. Its totient is φ = 2101221312000.

The previous prime is 3720540705367. The next prime is 3720540705389. The reversal of 3720540705387 is 7835070450273.

It is not a de Polignac number, because 3720540705387 - 2³² = 3716245738091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (3720540705389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32774923 + ... + 32888244.

It is an arithmetic number, because the mean of its divisors is an integer number (180836364672).

Almost surely, 2^{3720540705387} is an apocalyptic number.

3720540705387 is a deficient number, since it is larger than the sum of its proper divisors (2066222964117).

3720540705387 is a wasteful number, since it uses less digits than its factorization.

3720540705387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65663299.

The product of its (nonzero) digits is 4939200, while the sum is 51.

The spelling of 3720540705387 in words is "three trillion, seven hundred twenty billion, five hundred forty million, seven hundred five thousand, three hundred eighty-seven".