612464643 has 24 divisors (see below), whose sum is σ = 1023859200. Its totient is φ = 345546864.

The previous prime is 612464641. The next prime is 612464681. The reversal of 612464643 is 346464216.

612464643 is a `hidden beast` number, since 6 + 1 + 2 + 4 + 6 + 4 + 643 = 666.

It is not a de Polignac number, because 612464643 - 2¹ = 612464641 is a prime.

It is a super-2 number, since 2×612464643² = 750225877850234898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 612464598 and 612464607.

It is not an unprimeable number, because it can be changed into a prime (612464641) 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, 56553 + ... + 66506.

It is an arithmetic number, because the mean of its divisors is an integer number (42660800).

Almost surely, 2^612464643 is an apocalyptic number.

612464643 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

612464643 is a deficient number, since it is larger than the sum of its proper divisors (411394557).

612464643 is a wasteful number, since it uses less digits than its factorization.

612464643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123151 (or 123148 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 612464643 is about 24748.0230119499. The cubic root of 612464643 is about 849.2332846260.

The spelling of 612464643 in words is "six hundred twelve million, four hundred sixty-four thousand, six hundred forty-three".