133278686325 has 108 divisors (see below), whose sum is σ = 255597688320. Its totient is φ = 66369784320.

The previous prime is 133278686287. The next prime is 133278686329. The reversal of 133278686325 is 523686872331.

It is a happy number.

It is not a de Polignac number, because 133278686325 - 2¹⁰ = 133278685301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133278686329) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 8250106 + ... + 8266244.

Almost surely, 2^133278686325 is an apocalyptic number.

133278686325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133278686325 is a deficient number, since it is larger than the sum of its proper divisors (122319001995).

133278686325 is a wasteful number, since it uses less digits than its factorization.

133278686325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16316 (or 16291 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 133278686325 in words is "one hundred thirty-three billion, two hundred seventy-eight million, six hundred eighty-six thousand, three hundred twenty-five".