133890948936 has 48 divisors (see below), whose sum is σ = 362689317900. Its totient is φ = 44621947392.

The previous prime is 133890948889. The next prime is 133890948937. The reversal of 133890948936 is 639849098331.

133890948936 is a `hidden beast` number, since 1 + 3 + 38 + 90 + 9 + 489 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133890128100 + 820836 = 365910^2 + 906^2 .

It is a super-3 number, since 3×133890948936³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (133890948937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218380 + ... + 561668.

Almost surely, 2^133890948936 is an apocalyptic number.

It is an amenable number.

133890948936 is an abundant number, since it is smaller than the sum of its proper divisors (228798368964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133890948936 is a wasteful number, since it uses less digits than its factorization.

133890948936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348718 (or 348711 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 133890948936 in words is "one hundred thirty-three billion, eight hundred ninety million, nine hundred forty-eight thousand, nine hundred thirty-six".