3611225213642 has 4 divisors (see below), whose sum is σ = 5416837820466. Its totient is φ = 1805612606820.

The previous prime is 3611225213621. The next prime is 3611225213657. The reversal of 3611225213642 is 2463125221163.

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., 2245199563201 + 1366025650441 = 1498399^2 + 1168771^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3611225213596 and 3611225213605.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902806303409 + ... + 902806303412.

Almost surely, 2^{3611225213642} is an apocalyptic number.

3611225213642 is a deficient number, since it is larger than the sum of its proper divisors (1805612606824).

3611225213642 is a wasteful number, since it uses less digits than its factorization.

3611225213642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805612606823.

The product of its digits is 103680, while the sum is 38.

The spelling of 3611225213642 in words is "three trillion, six hundred eleven billion, two hundred twenty-five million, two hundred thirteen thousand, six hundred forty-two".