20988272409962 has 64 divisors (see below), whose sum is σ = 39075796569600. Its totient is φ = 8321697108480.

The previous prime is 20988272409961. The next prime is 20988272410051. The reversal of 20988272409962 is 26990427288902.

It is a junction number, because it is equal to n+sod(n) for n = 20988272409892 and 20988272409901.

It is not an unprimeable number, because it can be changed into a prime (20988272409961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26530787 + ... + 27310422.

It is an arithmetic number, because the mean of its divisors is an integer number (610559321400).

Almost surely, 2^{20988272409962} is an apocalyptic number.

20988272409962 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20988272409962 is a deficient number, since it is larger than the sum of its proper divisors (18087524159638).

20988272409962 is a wasteful number, since it uses less digits than its factorization.

20988272409962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53841311.

The product of its (nonzero) digits is 125411328, while the sum is 68.

The spelling of 20988272409962 in words is "twenty trillion, nine hundred eighty-eight billion, two hundred seventy-two million, four hundred nine thousand, nine hundred sixty-two".