45129749647 has 8 divisors (see below), whose sum is σ = 45927828576. Its totient is φ = 44338463232.

The previous prime is 45129749617. The next prime is 45129749689. The reversal of 45129749647 is 74694792154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45129749647 - 2³¹ = 42982265999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45129749591 and 45129749600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45129749617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684723 + ... + 1711300.

It is an arithmetic number, because the mean of its divisors is an integer number (5740978572).

Almost surely, 2^45129749647 is an apocalyptic number.

45129749647 is a deficient number, since it is larger than the sum of its proper divisors (798078929).

45129749647 is a wasteful number, since it uses less digits than its factorization.

45129749647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396257.

The product of its digits is 15240960, while the sum is 58.

The spelling of 45129749647 in words is "forty-five billion, one hundred twenty-nine million, seven hundred forty-nine thousand, six hundred forty-seven".