133798354977 has 144 divisors (see below), whose sum is σ = 228939724800. Its totient is φ = 69098702400.

The previous prime is 133798354913. The next prime is 133798354997. The reversal of 133798354977 is 779453897331.

It is not a de Polignac number, because 133798354977 - 2⁶ = 133798354913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133798354997) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 212041452 + ... + 212042082.

It is an arithmetic number, because the mean of its divisors is an integer number (1589859200).

Almost surely, 2^133798354977 is an apocalyptic number.

It is an amenable number.

133798354977 is a deficient number, since it is larger than the sum of its proper divisors (95141369823).

133798354977 is a wasteful number, since it uses less digits than its factorization.

133798354977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 770 counting only the distinct ones).

The product of its digits is 120022560, while the sum is 66.

The spelling of 133798354977 in words is "one hundred thirty-three billion, seven hundred ninety-eight million, three hundred fifty-four thousand, nine hundred seventy-seven".