19724602062961 has 12 divisors (see below), whose sum is σ = 20276352550272. Its totient is φ = 19187485899408.

The previous prime is 19724602062923. The next prime is 19724602063003. The reversal of 19724602062961 is 16926020642791.

It is not a de Polignac number, because 19724602062961 - 2¹⁵ = 19724602030193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19724602062661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5041756 + ... + 8054098.

It is an arithmetic number, because the mean of its divisors is an integer number (1689696045856).

Almost surely, 2^{19724602062961} is an apocalyptic number.

It is an amenable number.

19724602062961 is a deficient number, since it is larger than the sum of its proper divisors (551750487311).

19724602062961 is an equidigital number, since it uses as much as digits as its factorization.

19724602062961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3017200 (or 3017163 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 19724602062961 in words is "nineteen trillion, seven hundred twenty-four billion, six hundred two million, sixty-two thousand, nine hundred sixty-one".