129782082243 has 8 divisors (see below), whose sum is σ = 188773937856. Its totient is φ = 78655807400.

The previous prime is 129782082217. The next prime is 129782082247. The reversal of 129782082243 is 342280287921.

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

It is a cyclic number.

It is not a de Polignac number, because 129782082243 - 2²¹ = 129779985091 is a prime.

It is a super-2 number, since 2×129782082243² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 129782082192 and 129782082201.

It is not an unprimeable number, because it can be changed into a prime (129782082247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966395153 + ... + 1966395218.

It is an arithmetic number, because the mean of its divisors is an integer number (23596742232).

Almost surely, 2^129782082243 is an apocalyptic number.

129782082243 is a deficient number, since it is larger than the sum of its proper divisors (58991855613).

129782082243 is a wasteful number, since it uses less digits than its factorization.

129782082243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932790385.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 129782082243 in words is "one hundred twenty-nine billion, seven hundred eighty-two million, eighty-two thousand, two hundred forty-three".