129973765582 has 4 divisors (see below), whose sum is σ = 194960648376. Its totient is φ = 64986882790.

The previous prime is 129973765553. The next prime is 129973765613. The reversal of 129973765582 is 285567379921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 285567379921 = 1171 ⋅243866251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32493441394 + ... + 32493441397.

It is an arithmetic number, because the mean of its divisors is an integer number (48740162094).

Almost surely, 2^129973765582 is an apocalyptic number.

129973765582 is a deficient number, since it is larger than the sum of its proper divisors (64986882794).

129973765582 is an equidigital number, since it uses as much as digits as its factorization.

129973765582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64986882793.

The product of its digits is 57153600, while the sum is 64.

The spelling of 129973765582 in words is "one hundred twenty-nine billion, nine hundred seventy-three million, seven hundred sixty-five thousand, five hundred eighty-two".