3788534407257 has 24 divisors (see below), whose sum is σ = 5603597064000. Its totient is φ = 2465582584608.

The previous prime is 3788534407253. The next prime is 3788534407277. The reversal of 3788534407257 is 7527044358873.

It is a happy number.

3788534407257 is a `hidden beast` number, since 3 + 7 + 8 + 8 + 534 + 40 + 7 + 2 + 57 = 666.

3788534407257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3788534407257 - 2² = 3788534407253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3788534407194 and 3788534407203.

It is not an unprimeable number, because it can be changed into a prime (3788534407253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19860907 + ... + 20050752.

It is an arithmetic number, because the mean of its divisors is an integer number (233483211000).

Almost surely, 2^{3788534407257} is an apocalyptic number.

It is an amenable number.

3788534407257 is a deficient number, since it is larger than the sum of its proper divisors (1815062656743).

3788534407257 is a wasteful number, since it uses less digits than its factorization.

3788534407257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39911917 (or 39911914 counting only the distinct ones).

The product of its (nonzero) digits is 158054400, while the sum is 63.

The spelling of 3788534407257 in words is "three trillion, seven hundred eighty-eight billion, five hundred thirty-four million, four hundred seven thousand, two hundred fifty-seven".