1681172310974 has 8 divisors (see below), whose sum is σ = 2715739887000. Its totient is φ = 775925681976.

The previous prime is 1681172310931. The next prime is 1681172311051. The reversal of 1681172310974 is 4790132711861.

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

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, 32330236724 + ... + 32330236775.

It is an arithmetic number, because the mean of its divisors is an integer number (339467485875).

Almost surely, 2^{1681172310974} is an apocalyptic number.

1681172310974 is a deficient number, since it is larger than the sum of its proper divisors (1034567576026).

1681172310974 is a wasteful number, since it uses less digits than its factorization.

1681172310974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64660473514.

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 1681172310974 in words is "one trillion, six hundred eighty-one billion, one hundred seventy-two million, three hundred ten thousand, nine hundred seventy-four".