79793772101 has 2 divisors, whose sum is σ = 79793772102. Its totient is φ = 79793772100.

The previous prime is 79793772089. The next prime is 79793772131. The reversal of 79793772101 is 10127739797.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68644524001 + 11149248100 = 262001^2 + 105590^2 .

It is a cyclic number.

It is not a de Polignac number, because 79793772101 - 2³⁴ = 62613902917 is a prime.

It is a super-2 number, since 2×79793772101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79793772131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39896886050 + 39896886051.

It is an arithmetic number, because the mean of its divisors is an integer number (39896886051).

Almost surely, 2^79793772101 is an apocalyptic number.

It is an amenable number.

79793772101 is a deficient number, since it is larger than the sum of its proper divisors (1).

79793772101 is an equidigital number, since it uses as much as digits as its factorization.

79793772101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166886, while the sum is 53.

The spelling of 79793772101 in words is "seventy-nine billion, seven hundred ninety-three million, seven hundred seventy-two thousand, one hundred one".