5112647371621 has 4 divisors (see below), whose sum is σ = 5237346088044. Its totient is φ = 4987948655200.

The previous prime is 5112647371619. The next prime is 5112647371631. The reversal of 5112647371621 is 1261737462115.

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 899767970721 + 4212879400900 = 948561^2 + 2052530^2 .

It is a cyclic number.

It is not a de Polignac number, because 5112647371621 - 2¹ = 5112647371619 is a prime.

It is a super-2 number, since 2×5112647371621² (a number of 26 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 (5112647371631) 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, 62349358150 + ... + 62349358231.

It is an arithmetic number, because the mean of its divisors is an integer number (1309336522011).

Almost surely, 2^{5112647371621} is an apocalyptic number.

It is an amenable number.

5112647371621 is a deficient number, since it is larger than the sum of its proper divisors (124698716423).

5112647371621 is a wasteful number, since it uses less digits than its factorization.

5112647371621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124698716422.

The product of its digits is 423360, while the sum is 46.

The spelling of 5112647371621 in words is "five trillion, one hundred twelve billion, six hundred forty-seven million, three hundred seventy-one thousand, six hundred twenty-one".