3990531012757 has 2 divisors, whose sum is σ = 3990531012758. Its totient is φ = 3990531012756.

The previous prime is 3990531012731. The next prime is 3990531012761. The reversal of 3990531012757 is 7572101350993.

3990531012757 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3915783999556 + 74747013201 = 1978834^2 + 273399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3990531012757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3990531022757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1995265506378 + 1995265506379.

It is an arithmetic number, because the mean of its divisors is an integer number (1995265506379).

Almost surely, 2^{3990531012757} is an apocalyptic number.

It is an amenable number.

3990531012757 is a deficient number, since it is larger than the sum of its proper divisors (1).

3990531012757 is an equidigital number, since it uses as much as digits as its factorization.

3990531012757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1786050, while the sum is 52.

The spelling of 3990531012757 in words is "three trillion, nine hundred ninety billion, five hundred thirty-one million, twelve thousand, seven hundred fifty-seven".