263187225701401 has 4 divisors (see below), whose sum is σ = 263393323765092. Its totient is φ = 262981127637712.

The previous prime is 263187225701321. The next prime is 263187225701473. The reversal of 263187225701401 is 104107522781362.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191456895872025 + 71730329829376 = 13836795^2 + 8469376^2 .

It is a cyclic number.

It is not a de Polignac number, because 263187225701401 - 2¹¹ = 263187225699353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263187225701801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103049029930 + ... + 103049032483.

It is an arithmetic number, because the mean of its divisors is an integer number (65848330941273).

Almost surely, 2^{263187225701401} is an apocalyptic number.

It is an amenable number.

263187225701401 is a deficient number, since it is larger than the sum of its proper divisors (206098063691).

263187225701401 is a wasteful number, since it uses less digits than its factorization.

263187225701401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206098063690.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 263187225701401 in words is "two hundred sixty-three trillion, one hundred eighty-seven billion, two hundred twenty-five million, seven hundred one thousand, four hundred one".