16312678811782 has 8 divisors (see below), whose sum is σ = 24469106987952. Its totient is φ = 8156309815800.

The previous prime is 16312678811743. The next prime is 16312678811783. The reversal of 16312678811782 is 28711887621361.

It is a happy number.

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

It is a super-2 number, since 2×16312678811782² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16312678811782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16312678811783) 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, 14099394 + ... + 15212437.

It is an arithmetic number, because the mean of its divisors is an integer number (3058638373494).

Almost surely, 2^{16312678811782} is an apocalyptic number.

16312678811782 is a deficient number, since it is larger than the sum of its proper divisors (8156428176170).

16312678811782 is a wasteful number, since it uses less digits than its factorization.

16312678811782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29590094.

The product of its digits is 10838016, while the sum is 61.

The spelling of 16312678811782 in words is "sixteen trillion, three hundred twelve billion, six hundred seventy-eight million, eight hundred eleven thousand, seven hundred eighty-two".