1331871201774 has 48 divisors (see below), whose sum is σ = 2982818801664. Its totient is φ = 429057493200.

The previous prime is 1331871201767. The next prime is 1331871201803. The reversal of 1331871201774 is 4771021781331.

It is a super-2 number, since 2×1331871201774² (a number of 25 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 23 ways as a sum of consecutive naturals, for example, 1191642 + ... + 2020829.

It is an arithmetic number, because the mean of its divisors is an integer number (62142058368).

Almost surely, 2^{1331871201774} is an apocalyptic number.

1331871201774 is an abundant number, since it is smaller than the sum of its proper divisors (1650947599890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331871201774 is a wasteful number, since it uses less digits than its factorization.

1331871201774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3213253 (or 3213250 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The spelling of 1331871201774 in words is "one trillion, three hundred thirty-one billion, eight hundred seventy-one million, two hundred one thousand, seven hundred seventy-four".