6374766645 has 24 divisors (see below), whose sum is σ = 11899565496. Its totient is φ = 3138346368.

The previous prime is 6374766617. The next prime is 6374766653. The reversal of 6374766645 is 5466674736.

It can be written as a sum of positive squares in 4 ways, for example, as 592532964 + 5782233681 = 24342^2 + 76041^2 .

It is not a de Polignac number, because 6374766645 - 2¹² = 6374762549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6374766591 and 6374766600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5447934 + ... + 5449103.

It is an arithmetic number, because the mean of its divisors is an integer number (495815229).

Almost surely, 2^6374766645 is an apocalyptic number.

6374766645 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6374766645 is a deficient number, since it is larger than the sum of its proper divisors (5524798851).

6374766645 is a wasteful number, since it uses less digits than its factorization.

6374766645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897061 (or 10897058 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 54.

The square root of 6374766645 is about 79842.1357742890. The cubic root of 6374766645 is about 1854.1922600269.

The spelling of 6374766645 in words is "six billion, three hundred seventy-four million, seven hundred sixty-six thousand, six hundred forty-five".