1307893778531 has 2 divisors, whose sum is σ = 1307893778532. Its totient is φ = 1307893778530.

The previous prime is 1307893778413. The next prime is 1307893778557. The reversal of 1307893778531 is 1358773987031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1307893778531 - 2³⁰ = 1306820036707 is a prime.

It is a super-2 number, since 2×1307893778531² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1307893378531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653946889265 + 653946889266.

It is an arithmetic number, because the mean of its divisors is an integer number (653946889266).

Almost surely, 2^{1307893778531} is an apocalyptic number.

1307893778531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307893778531 is an equidigital number, since it uses as much as digits as its factorization.

1307893778531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26671680, while the sum is 62.

The spelling of 1307893778531 in words is "one trillion, three hundred seven billion, eight hundred ninety-three million, seven hundred seventy-eight thousand, five hundred thirty-one".