5612641812 has 18 divisors (see below), whose sum is σ = 14187511338. Its totient is φ = 1870880592.

The previous prime is 5612641807. The next prime is 5612641831. The reversal of 5612641812 is 2181462165.

It is a happy number.

5612641812 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 641 + 8 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3414532356 + 2198109456 = 58434^2 + 46884^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 155906717 = 5612641812 / (5 + 6 + 1 + 2 + 6 + 4 + 1 + 8 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77953323 + ... + 77953394.

Almost surely, 2^5612641812 is an apocalyptic number.

It is an amenable number.

5612641812 is an abundant number, since it is smaller than the sum of its proper divisors (8574869526).

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

5612641812 is a wasteful number, since it uses less digits than its factorization.

5612641812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155906727 (or 155906722 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 5612641812 is about 74917.5667784265. The cubic root of 5612641812 is about 1777.1432748624.

The spelling of 5612641812 in words is "five billion, six hundred twelve million, six hundred forty-one thousand, eight hundred twelve".