133968923670 has 16 divisors (see below), whose sum is σ = 321525416880. Its totient is φ = 35725046304.

The previous prime is 133968923633. The next prime is 133968923701. The reversal of 133968923670 is 76329869331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 133968923670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2232815365 + ... + 2232815424.

It is an arithmetic number, because the mean of its divisors is an integer number (20095338555).

Almost surely, 2^133968923670 is an apocalyptic number.

133968923670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133968923670 is an abundant number, since it is smaller than the sum of its proper divisors (187556493210).

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

133968923670 is a wasteful number, since it uses less digits than its factorization.

133968923670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465630799.

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 133968923670 in words is "one hundred thirty-three billion, nine hundred sixty-eight million, nine hundred twenty-three thousand, six hundred seventy".