129761212445 has 32 divisors (see below), whose sum is σ = 159901378560. Its totient is φ = 101035045440.

The previous prime is 129761212433. The next prime is 129761212457. The reversal of 129761212445 is 544212167921.

It is an interprime number because it is at equal distance from previous prime (129761212433) and next prime (129761212457).

It is not a de Polignac number, because 129761212445 - 2⁴ = 129761212429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129761212396 and 129761212405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146291792 + ... + 146292678.

It is an arithmetic number, because the mean of its divisors is an integer number (4996918080).

Almost surely, 2^129761212445 is an apocalyptic number.

It is an amenable number.

129761212445 is a deficient number, since it is larger than the sum of its proper divisors (30140166115).

129761212445 is an equidigital number, since it uses as much as digits as its factorization.

129761212445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585.

The product of its digits is 241920, while the sum is 44.

The spelling of 129761212445 in words is "one hundred twenty-nine billion, seven hundred sixty-one million, two hundred twelve thousand, four hundred forty-five".