612442623211445 has 12 divisors (see below), whose sum is σ = 795813018091236. Its totient is φ = 452265321755520.

The previous prime is 612442623211423. The next prime is 612442623211537. The reversal of 612442623211445 is 544112326244216.

It can be written as a sum of positive squares in 6 ways, for example, as 303721172049604 + 308721451161841 = 17427598^2 + 17570471^2 .

It is not a de Polignac number, because 612442623211445 - 2⁸ = 612442623211189 is a prime.

It is a super-2 number, since 2×612442623211445² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 612442623211445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362392083896 + ... + 362392085585.

It is an arithmetic number, because the mean of its divisors is an integer number (66317751507603).

Almost surely, 2^{612442623211445} is an apocalyptic number.

612442623211445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

612442623211445 is a deficient number, since it is larger than the sum of its proper divisors (183370394879791).

612442623211445 is a wasteful number, since it uses less digits than its factorization.

612442623211445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724784169512 (or 724784169499 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 47.

The spelling of 612442623211445 in words is "six hundred twelve trillion, four hundred forty-two billion, six hundred twenty-three million, two hundred eleven thousand, four hundred forty-five".