2642226901 has 4 divisors (see below), whose sum is σ = 2662396704. Its totient is φ = 2622057100.

The previous prime is 2642226889. The next prime is 2642226911. The reversal of 2642226901 is 1096222462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1096222462 = 2 ⋅548111231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642226901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642226911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10084705 + ... + 10084966.

It is an arithmetic number, because the mean of its divisors is an integer number (665599176).

Almost surely, 2^2642226901 is an apocalyptic number.

It is an amenable number.

2642226901 is a deficient number, since it is larger than the sum of its proper divisors (20169803).

2642226901 is a wasteful number, since it uses less digits than its factorization.

2642226901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20169802.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2642226901 is about 51402.5962476605. The cubic root of 2642226901 is about 1382.4731435650.

The spelling of 2642226901 in words is "two billion, six hundred forty-two million, two hundred twenty-six thousand, nine hundred one".