612513046155231 has 24 divisors (see below), whose sum is σ = 953098734435120. Its totient is φ = 376812161865216.

The previous prime is 612513046155173. The next prime is 612513046155271. The reversal of 612513046155231 is 132551640315216.

It is a happy number.

612513046155231 is a `hidden beast` number, since 6 + 1 + 2 + 5 + 1 + 3 + 0 + 4 + 61 + 552 + 31 = 666.

It is not a de Polignac number, because 612513046155231 - 2²⁷ = 612512911937503 is a prime.

It is a super-3 number, since 3×612513046155231³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612513046155271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 825623901 + ... + 826365446.

It is an arithmetic number, because the mean of its divisors is an integer number (39712447268130).

Almost surely, 2^{612513046155231} is an apocalyptic number.

612513046155231 is a deficient number, since it is larger than the sum of its proper divisors (340585688279889).

612513046155231 is a wasteful number, since it uses less digits than its factorization.

612513046155231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651992535 (or 1651992532 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 612513046155231 in words is "six hundred twelve trillion, five hundred thirteen billion, forty-six million, one hundred fifty-five thousand, two hundred thirty-one".