79101906827 has 2 divisors, whose sum is σ = 79101906828. Its totient is φ = 79101906826.

The previous prime is 79101906817. The next prime is 79101906839. The reversal of 79101906827 is 72860910197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79101906827 - 2¹⁰ = 79101905803 is a prime.

It is a super-2 number, since 2×79101906827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (79101906817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39550953413 + 39550953414.

It is an arithmetic number, because the mean of its divisors is an integer number (39550953414).

Almost surely, 2^79101906827 is an apocalyptic number.

79101906827 is a deficient number, since it is larger than the sum of its proper divisors (1).

79101906827 is an equidigital number, since it uses as much as digits as its factorization.

79101906827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 50.

The spelling of 79101906827 in words is "seventy-nine billion, one hundred one million, nine hundred six thousand, eight hundred twenty-seven".