612562954573 has 4 divisors (see below), whose sum is σ = 629118710140. Its totient is φ = 596007199008.

The previous prime is 612562954513. The next prime is 612562954583. The reversal of 612562954573 is 375459265216.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 412372034244 + 200190920329 = 642162^2 + 447427^2 .

It is a cyclic number.

It is not a de Polignac number, because 612562954573 - 2⁹ = 612562954061 is a prime.

It is a super-2 number, since 2×612562954573² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612562954513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8277877728 + ... + 8277877801.

It is an arithmetic number, because the mean of its divisors is an integer number (157279677535).

Almost surely, 2^612562954573 is an apocalyptic number.

It is an amenable number.

612562954573 is a deficient number, since it is larger than the sum of its proper divisors (16555755567).

612562954573 is a wasteful number, since it uses less digits than its factorization.

612562954573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16555755566.

The product of its digits is 13608000, while the sum is 55.

The spelling of 612562954573 in words is "six hundred twelve billion, five hundred sixty-two million, nine hundred fifty-four thousand, five hundred seventy-three".