133864593331 has 16 divisors (see below), whose sum is σ = 162250036416. Its totient is φ = 107816518656.

The previous prime is 133864593329. The next prime is 133864593337. The reversal of 133864593331 is 133395468331.

It is not a de Polignac number, because 133864593331 - 2¹ = 133864593329 is a prime.

It is a super-2 number, since 2×133864593331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133864593337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838176 + ... + 985021.

It is an arithmetic number, because the mean of its divisors is an integer number (10140627276).

Almost surely, 2^133864593331 is an apocalyptic number.

133864593331 is a deficient number, since it is larger than the sum of its proper divisors (28385443085).

133864593331 is a wasteful number, since it uses less digits than its factorization.

133864593331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823838.

The product of its digits is 2099520, while the sum is 49.

The spelling of 133864593331 in words is "one hundred thirty-three billion, eight hundred sixty-four million, five hundred ninety-three thousand, three hundred thirty-one".