133426357623 has 48 divisors (see below), whose sum is σ = 215809077120. Its totient is φ = 81891147744.

The previous prime is 133426357621. The next prime is 133426357633. The reversal of 133426357623 is 326753624331.

133426357623 is a `hidden beast` number, since 1 + 3 + 3 + 4 + 2 + 635 + 7 + 6 + 2 + 3 = 666.

It is not a de Polignac number, because 133426357623 - 2¹ = 133426357621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133426357621) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1141540 + ... + 1252982.

It is an arithmetic number, because the mean of its divisors is an integer number (4496022440).

Almost surely, 2^133426357623 is an apocalyptic number.

133426357623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133426357623 is a deficient number, since it is larger than the sum of its proper divisors (82382719497).

133426357623 is a wasteful number, since it uses less digits than its factorization.

133426357623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111850 (or 111838 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 45.

The spelling of 133426357623 in words is "one hundred thirty-three billion, four hundred twenty-six million, three hundred fifty-seven thousand, six hundred twenty-three".