6437746345 has 16 divisors (see below), whose sum is σ = 8485453440. Its totient is φ = 4666996224.

The previous prime is 6437746327. The next prime is 6437746373. The reversal of 6437746345 is 5436477346.

It is a cyclic number.

It is not a de Polignac number, because 6437746345 - 2⁹ = 6437745833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1470984 + ... + 1475353.

It is an arithmetic number, because the mean of its divisors is an integer number (530340840).

Almost surely, 2^6437746345 is an apocalyptic number.

It is an amenable number.

6437746345 is a deficient number, since it is larger than the sum of its proper divisors (2047707095).

6437746345 is a wasteful number, since it uses less digits than its factorization.

6437746345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946384.

The product of its digits is 5080320, while the sum is 49.

The square root of 6437746345 is about 80235.5678299842. The cubic root of 6437746345 is about 1860.2784437850.

The spelling of 6437746345 in words is "six billion, four hundred thirty-seven million, seven hundred forty-six thousand, three hundred forty-five".