129214377433 has 4 divisors (see below), whose sum is σ = 136015134160. Its totient is φ = 122413620708.

The previous prime is 129214377379. The next prime is 129214377493. The reversal of 129214377433 is 334773412921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 129214377433 - 2¹⁷ = 129214246361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129214377493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3400378335 + ... + 3400378372.

It is an arithmetic number, because the mean of its divisors is an integer number (34003783540).

Almost surely, 2^129214377433 is an apocalyptic number.

It is an amenable number.

129214377433 is a deficient number, since it is larger than the sum of its proper divisors (6800756727).

129214377433 is an equidigital number, since it uses as much as digits as its factorization.

129214377433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800756726.

The product of its digits is 762048, while the sum is 46.

The spelling of 129214377433 in words is "one hundred twenty-nine billion, two hundred fourteen million, three hundred seventy-seven thousand, four hundred thirty-three".