20262691297727 has 24 divisors (see below), whose sum is σ = 20849449190976. Its totient is φ = 19683504841728.

The previous prime is 20262691297697. The next prime is 20262691297729. The reversal of 20262691297727 is 72779219626202.

It is not a de Polignac number, because 20262691297727 - 2¹⁶ = 20262691232191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20262691297727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20262691297729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1104044183 + ... + 1104062535.

It is an arithmetic number, because the mean of its divisors is an integer number (868727049624).

Almost surely, 2^{20262691297727} is an apocalyptic number.

20262691297727 is a deficient number, since it is larger than the sum of its proper divisors (586757893249).

20262691297727 is an equidigital number, since it uses as much as digits as its factorization.

20262691297727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19667 (or 19510 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 20262691297727 in words is "twenty trillion, two hundred sixty-two billion, six hundred ninety-one million, two hundred ninety-seven thousand, seven hundred twenty-seven".