20261243626377 has 16 divisors (see below), whose sum is σ = 29097725247360. Its totient is φ = 12466461555072.

The previous prime is 20261243626373. The next prime is 20261243626423. The reversal of 20261243626377 is 77362634216202.

It is not a de Polignac number, because 20261243626377 - 2² = 20261243626373 is a prime.

It is a super-2 number, since 2×20261243626377² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20261243626373) 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, 41337852 + ... + 41825117.

It is an arithmetic number, because the mean of its divisors is an integer number (1818607827960).

Almost surely, 2^{20261243626377} is an apocalyptic number.

It is an amenable number.

20261243626377 is a deficient number, since it is larger than the sum of its proper divisors (8836481620983).

20261243626377 is a wasteful number, since it uses less digits than its factorization.

20261243626377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83169232.

The product of its (nonzero) digits is 6096384, while the sum is 51.

The spelling of 20261243626377 in words is "twenty trillion, two hundred sixty-one billion, two hundred forty-three million, six hundred twenty-six thousand, three hundred seventy-seven".