133368400837 has 4 divisors (see below), whose sum is σ = 152421029536. Its totient is φ = 114315772140.

The previous prime is 133368400793. The next prime is 133368400843. The reversal of 133368400837 is 738004863331.

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: 738004863331 = 6581 ⋅112141751.

It is a cyclic number.

It is not a de Polignac number, because 133368400837 - 2²³ = 133360012229 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 (133368400877) 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, 9526314339 + ... + 9526314352.

It is an arithmetic number, because the mean of its divisors is an integer number (38105257384).

Almost surely, 2^133368400837 is an apocalyptic number.

It is an amenable number.

133368400837 is a deficient number, since it is larger than the sum of its proper divisors (19052628699).

133368400837 is an equidigital number, since it uses as much as digits as its factorization.

133368400837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19052628698.

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 133368400837 in words is "one hundred thirty-three billion, three hundred sixty-eight million, four hundred thousand, eight hundred thirty-seven".