263621052631401 has 16 divisors (see below), whose sum is σ = 355144866976704. Its totient is φ = 173922573487104.

The previous prime is 263621052631399. The next prime is 263621052631499. The reversal of 263621052631401 is 104136250126362.

It is not a de Polignac number, because 263621052631401 - 2¹ = 263621052631399 is a prime.

It is a super-2 number, since 2×263621052631401² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (263621052631301) 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, 29855595 + ... + 37664288.

It is an arithmetic number, because the mean of its divisors is an integer number (22196554186044).

Almost surely, 2^{263621052631401} is an apocalyptic number.

It is an amenable number.

263621052631401 is a deficient number, since it is larger than the sum of its proper divisors (91523814345303).

263621052631401 is a wasteful number, since it uses less digits than its factorization.

263621052631401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67533400.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 263621052631401 in words is "two hundred sixty-three trillion, six hundred twenty-one billion, fifty-two million, six hundred thirty-one thousand, four hundred one".