3914731064509 has 2 divisors, whose sum is σ = 3914731064510. Its totient is φ = 3914731064508.

The previous prime is 3914731064449. The next prime is 3914731064561. The reversal of 3914731064509 is 9054601374193.

3914731064509 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (3914731064561) can be obtained adding 3914731064509 to its sum of digits (52).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3394714125625 + 520016938884 = 1842475^2 + 721122^2 .

It is a cyclic number.

It is not a de Polignac number, because 3914731064509 - 2²³ = 3914722675901 is a prime.

It is a super-2 number, since 2×3914731064509² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3914731064009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957365532254 + 1957365532255.

It is an arithmetic number, because the mean of its divisors is an integer number (1957365532255).

Almost surely, 2^{3914731064509} is an apocalyptic number.

It is an amenable number.

3914731064509 is a deficient number, since it is larger than the sum of its proper divisors (1).

3914731064509 is an equidigital number, since it uses as much as digits as its factorization.

3914731064509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 3914731064509 in words is "three trillion, nine hundred fourteen billion, seven hundred thirty-one million, sixty-four thousand, five hundred nine".