1977974342174 has 16 divisors (see below), whose sum is σ = 3130753390800. Its totient is φ = 934644412224.

The previous prime is 1977974342159. The next prime is 1977974342191. The reversal of 1977974342174 is 4712434797791.

It is a self number, because there is not a number n which added to its sum of digits gives 1977974342174.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63617657 + ... + 63648740.

It is an arithmetic number, because the mean of its divisors is an integer number (195672086925).

Almost surely, 2^{1977974342174} is an apocalyptic number.

1977974342174 is a deficient number, since it is larger than the sum of its proper divisors (1152779048626).

1977974342174 is a wasteful number, since it uses less digits than its factorization.

1977974342174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127266827.

The product of its digits is 74680704, while the sum is 65.

The spelling of 1977974342174 in words is "one trillion, nine hundred seventy-seven billion, nine hundred seventy-four million, three hundred forty-two thousand, one hundred seventy-four".