127980000782 has 8 divisors (see below), whose sum is σ = 198162581952. Its totient is φ = 61925806800.

The previous prime is 127980000779. The next prime is 127980000809. The reversal of 127980000782 is 287000089721.

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

It is a super-2 number, since 2×127980000782² (a number of 23 digits) contains 22 as substring.

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, 1032096719 + ... + 1032096842.

It is an arithmetic number, because the mean of its divisors is an integer number (24770322744).

Almost surely, 2^127980000782 is an apocalyptic number.

127980000782 is a deficient number, since it is larger than the sum of its proper divisors (70182581170).

127980000782 is a wasteful number, since it uses less digits than its factorization.

127980000782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064193594.

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 127980000782 in words is "one hundred twenty-seven billion, nine hundred eighty million, seven hundred eighty-two", and thus it is an aban number.