133626450440431 has 4 divisors (see below), whose sum is σ = 143905408166632. Its totient is φ = 123347492714232.

The previous prime is 133626450440411. The next prime is 133626450440479. The reversal of 133626450440431 is 134044054626331.

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

It is a cyclic number.

It is not a de Polignac number, because 133626450440431 - 2¹⁹ = 133626449916143 is a prime.

It is a super-2 number, since 2×133626450440431² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133626450440411) 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, 5139478863081 + ... + 5139478863106.

It is an arithmetic number, because the mean of its divisors is an integer number (35976352041658).

Almost surely, 2^{133626450440431} is an apocalyptic number.

133626450440431 is a deficient number, since it is larger than the sum of its proper divisors (10278957726201).

133626450440431 is a wasteful number, since it uses less digits than its factorization.

133626450440431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10278957726200.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 133626450440431 in words is "one hundred thirty-three trillion, six hundred twenty-six billion, four hundred fifty million, four hundred forty thousand, four hundred thirty-one".