2942721633 has 8 divisors (see below), whose sum is σ = 3923918496. Its totient is φ = 1961669600.

The previous prime is 2942721631. The next prime is 2942721643. The reversal of 2942721633 is 3361272492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2942721633 - 2¹ = 2942721631 is a prime.

It is a super-2 number, since 2×2942721633² = 17319221218652373378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2942721591 and 2942721600.

It is not an unprimeable number, because it can be changed into a prime (2942721631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26938 + ... + 81308.

It is an arithmetic number, because the mean of its divisors is an integer number (490489812).

Almost surely, 2^2942721633 is an apocalyptic number.

It is an amenable number.

2942721633 is a deficient number, since it is larger than the sum of its proper divisors (981196863).

2942721633 is a wasteful number, since it uses less digits than its factorization.

2942721633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72415.

The product of its digits is 108864, while the sum is 39.

The square root of 2942721633 is about 54246.8582776920. The cubic root of 2942721633 is about 1433.0116704488.

The spelling of 2942721633 in words is "two billion, nine hundred forty-two million, seven hundred twenty-one thousand, six hundred thirty-three".