129533046974 has 4 divisors (see below), whose sum is σ = 194299570464. Its totient is φ = 64766523486.

The previous prime is 129533046971. The next prime is 129533046977. The reversal of 129533046974 is 479640335921.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (129533046971) and next prime (129533046977).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129533046971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32383261742 + ... + 32383261745.

It is an arithmetic number, because the mean of its divisors is an integer number (48574892616).

Almost surely, 2^129533046974 is an apocalyptic number.

129533046974 is a deficient number, since it is larger than the sum of its proper divisors (64766523490).

129533046974 is an equidigital number, since it uses as much as digits as its factorization.

129533046974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64766523489.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 129533046974 in words is "one hundred twenty-nine billion, five hundred thirty-three million, forty-six thousand, nine hundred seventy-four".