36423563261 has 4 divisors (see below), whose sum is σ = 36424206624. Its totient is φ = 36422919900.

The previous prime is 36423563251. The next prime is 36423563287. The reversal of 36423563261 is 16236532463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16236532463 = 3229 ⋅5028347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36423563261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36423563251) 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, 227585 + ... + 353046.

It is an arithmetic number, because the mean of its divisors is an integer number (9106051656).

Almost surely, 2^36423563261 is an apocalyptic number.

It is an amenable number.

36423563261 is a deficient number, since it is larger than the sum of its proper divisors (643363).

36423563261 is an equidigital number, since it uses as much as digits as its factorization.

36423563261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643362.

The product of its digits is 466560, while the sum is 41.

The spelling of 36423563261 in words is "thirty-six billion, four hundred twenty-three million, five hundred sixty-three thousand, two hundred sixty-one".