133998562978 has 8 divisors (see below), whose sum is σ = 229711822272. Its totient is φ = 57427955556.

The previous prime is 133998562937. The next prime is 133998562979. The reversal of 133998562978 is 879265899331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133998562978² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133998562979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785662950 + ... + 4785662977.

It is an arithmetic number, because the mean of its divisors is an integer number (28713977784).

Almost surely, 2^133998562978 is an apocalyptic number.

133998562978 is a deficient number, since it is larger than the sum of its proper divisors (95713259294).

133998562978 is an equidigital number, since it uses as much as digits as its factorization.

133998562978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571325936.

The product of its digits is 176359680, while the sum is 70.

The spelling of 133998562978 in words is "one hundred thirty-three billion, nine hundred ninety-eight million, five hundred sixty-two thousand, nine hundred seventy-eight".