612228018830715 has 128 divisors (see below), whose sum is σ = 1319766412677120. Its totient is φ = 262871500068864.

The previous prime is 612228018830689. The next prime is 612228018830761. The reversal of 612228018830715 is 517038810822216.

It is a happy number.

612228018830715 is a `hidden beast` number, since 6 + 122 + 28 + 0 + 188 + 307 + 15 = 666.

It is not a de Polignac number, because 612228018830715 - 2¹³ = 612228018822523 is a prime.

It is a super-2 number, since 2×612228018830715² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 31303072 + ... + 46950381.

It is an arithmetic number, because the mean of its divisors is an integer number (10310675099040).

Almost surely, 2^{612228018830715} is an apocalyptic number.

612228018830715 is an abundant number, since it is smaller than the sum of its proper divisors (707538393846405).

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

612228018830715 is a wasteful number, since it uses less digits than its factorization.

612228018830715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78253978 (or 78253972 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 612228018830715 in words is "six hundred twelve trillion, two hundred twenty-eight billion, eighteen million, eight hundred thirty thousand, seven hundred fifteen".