129761447486 has 8 divisors (see below), whose sum is σ = 212336914104. Its totient is φ = 58982476120.

The previous prime is 129761447479. The next prime is 129761447509. The reversal of 129761447486 is 684744167921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2949123785 + ... + 2949123828.

It is an arithmetic number, because the mean of its divisors is an integer number (26542114263).

Almost surely, 2^129761447486 is an apocalyptic number.

129761447486 is a deficient number, since it is larger than the sum of its proper divisors (82575466618).

129761447486 is a wasteful number, since it uses less digits than its factorization.

129761447486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898247626.

The product of its digits is 16257024, while the sum is 59.

The spelling of 129761447486 in words is "one hundred twenty-nine billion, seven hundred sixty-one million, four hundred forty-seven thousand, four hundred eighty-six".