15715717212007 has 2 divisors, whose sum is σ = 15715717212008. Its totient is φ = 15715717212006.

The previous prime is 15715717211993. The next prime is 15715717212011. The reversal of 15715717212007 is 70021271751751.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15715717212007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15715717215007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857858606003 + 7857858606004.

It is an arithmetic number, because the mean of its divisors is an integer number (7857858606004).

Almost surely, 2^{15715717212007} is an apocalyptic number.

15715717212007 is a deficient number, since it is larger than the sum of its proper divisors (1).

15715717212007 is an equidigital number, since it uses as much as digits as its factorization.

15715717212007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240100, while the sum is 46.

Adding to 15715717212007 its reverse (70021271751751), we get a palindrome (85736988963758).

The spelling of 15715717212007 in words is "fifteen trillion, seven hundred fifteen billion, seven hundred seventeen million, two hundred twelve thousand, seven".