79747632011 has 2 divisors, whose sum is σ = 79747632012. Its totient is φ = 79747632010.

The previous prime is 79747631993. The next prime is 79747632031. The reversal of 79747632011 is 11023674797.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79747632011 is a prime.

It is a super-2 number, since 2×79747632011² (a number of 23 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 (79747632031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39873816005 + 39873816006.

It is an arithmetic number, because the mean of its divisors is an integer number (39873816006).

Almost surely, 2^79747632011 is an apocalyptic number.

79747632011 is a deficient number, since it is larger than the sum of its proper divisors (1).

79747632011 is an equidigital number, since it uses as much as digits as its factorization.

79747632011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 79747632011 in words is "seventy-nine billion, seven hundred forty-seven million, six hundred thirty-two thousand, eleven".