79946457129 has 48 divisors (see below), whose sum is σ = 144046331520. Its totient is φ = 41509428480.

The previous prime is 79946457121. The next prime is 79946457139. The reversal of 79946457129 is 92175464997.

79946457129 is a `hidden beast` number, since 79 + 94 + 6 + 457 + 1 + 29 = 666.

It is not a de Polignac number, because 79946457129 - 2³ = 79946457121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (79946457121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1377669 + ... + 1434525.

It is an arithmetic number, because the mean of its divisors is an integer number (3000965240).

Almost surely, 2^79946457129 is an apocalyptic number.

It is an amenable number.

79946457129 is a deficient number, since it is larger than the sum of its proper divisors (64099874391).

79946457129 is a wasteful number, since it uses less digits than its factorization.

79946457129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58910 (or 58907 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The spelling of 79946457129 in words is "seventy-nine billion, nine hundred forty-six million, four hundred fifty-seven thousand, one hundred twenty-nine".