133428278015 has 32 divisors (see below), whose sum is σ = 163034726400. Its totient is φ = 104814688000.

The previous prime is 133428277979. The next prime is 133428278023. The reversal of 133428278015 is 510872824331.

It is not a de Polignac number, because 133428278015 - 2¹⁰ = 133428276991 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42777626 + ... + 42780744.

It is an arithmetic number, because the mean of its divisors is an integer number (5094835200).

Almost surely, 2^133428278015 is an apocalyptic number.

133428278015 is a deficient number, since it is larger than the sum of its proper divisors (29606448385).

133428278015 is a wasteful number, since it uses less digits than its factorization.

133428278015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 133428278015 in words is "one hundred thirty-three billion, four hundred twenty-eight million, two hundred seventy-eight thousand, fifteen".