4031257390387 has 2 divisors, whose sum is σ = 4031257390388. Its totient is φ = 4031257390386.

The previous prime is 4031257390361. The next prime is 4031257390397. The reversal of 4031257390387 is 7830937521304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4031257390387 - 2¹¹ = 4031257388339 is a prime.

It is a super-2 number, since 2×4031257390387² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4031257390337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015628695193 + 2015628695194.

It is an arithmetic number, because the mean of its divisors is an integer number (2015628695194).

Almost surely, 2^{4031257390387} is an apocalyptic number.

4031257390387 is a deficient number, since it is larger than the sum of its proper divisors (1).

4031257390387 is an equidigital number, since it uses as much as digits as its factorization.

4031257390387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 4031257390387 in words is "four trillion, thirty-one billion, two hundred fifty-seven million, three hundred ninety thousand, three hundred eighty-seven".