1506979729687 has 2 divisors, whose sum is σ = 1506979729688. Its totient is φ = 1506979729686.

The previous prime is 1506979729669. The next prime is 1506979729741. The reversal of 1506979729687 is 7869279796051.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7869279796051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1506979729687 - 2²³ = 1506971341079 is a prime.

It is a super-3 number, since 3×1506979729687³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1506979729637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 753489864843 + 753489864844.

It is an arithmetic number, because the mean of its divisors is an integer number (753489864844).

Almost surely, 2^{1506979729687} is an apocalyptic number.

1506979729687 is a deficient number, since it is larger than the sum of its proper divisors (1).

1506979729687 is an equidigital number, since it uses as much as digits as its factorization.

1506979729687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720135360, while the sum is 76.

The spelling of 1506979729687 in words is "one trillion, five hundred six billion, nine hundred seventy-nine million, seven hundred twenty-nine thousand, six hundred eighty-seven".