1641237312674 has 4 divisors (see below), whose sum is σ = 2461855969014. Its totient is φ = 820618656336.

The previous prime is 1641237312653. The next prime is 1641237312679. The reversal of 1641237312674 is 4762137321461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1412425287025 + 228812025649 = 1188455^2 + 478343^2 .

It is not an unprimeable number, because it can be changed into a prime (1641237312679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410309328167 + ... + 410309328170.

Almost surely, 2^{1641237312674} is an apocalyptic number.

1641237312674 is a deficient number, since it is larger than the sum of its proper divisors (820618656340).

1641237312674 is an equidigital number, since it uses as much as digits as its factorization.

1641237312674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820618656339.

The product of its digits is 1016064, while the sum is 47.

The spelling of 1641237312674 in words is "one trillion, six hundred forty-one billion, two hundred thirty-seven million, three hundred twelve thousand, six hundred seventy-four".