2321620361647 has 16 divisors (see below), whose sum is σ = 2342956492800. Its totient is φ = 2300341511520.

The previous prime is 2321620361623. The next prime is 2321620361653. The reversal of 2321620361647 is 7461630261232.

It is a cyclic number.

It is not a de Polignac number, because 2321620361647 - 2¹¹ = 2321620359599 is a prime.

It is a super-2 number, since 2×2321620361647² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321620362647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500454754 + ... + 500459392.

It is an arithmetic number, because the mean of its divisors is an integer number (146434780800).

Almost surely, 2^{2321620361647} is an apocalyptic number.

2321620361647 is a deficient number, since it is larger than the sum of its proper divisors (21336131153).

2321620361647 is a wasteful number, since it uses less digits than its factorization.

2321620361647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 2321620361647 in words is "two trillion, three hundred twenty-one billion, six hundred twenty million, three hundred sixty-one thousand, six hundred forty-seven".