213830615755 has 32 divisors (see below), whose sum is σ = 273097972224. Its totient is φ = 160168943616.

The previous prime is 213830615753. The next prime is 213830615767. The reversal of 213830615755 is 557516038312.

It is a cyclic number.

It is not a de Polignac number, because 213830615755 - 2¹ = 213830615753 is a prime.

It is a super-4 number, since 4×213830615755⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213830615753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36257967 + ... + 36263863.

It is an arithmetic number, because the mean of its divisors is an integer number (8534311632).

Almost surely, 2^213830615755 is an apocalyptic number.

213830615755 is a deficient number, since it is larger than the sum of its proper divisors (59267356469).

213830615755 is a wasteful number, since it uses less digits than its factorization.

213830615755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 213830615755 in words is "two hundred thirteen billion, eight hundred thirty million, six hundred fifteen thousand, seven hundred fifty-five".