45242963849 has 4 divisors (see below), whose sum is σ = 45273514260. Its totient is φ = 45212413440.

The previous prime is 45242963819. The next prime is 45242963861. The reversal of 45242963849 is 94836924254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11915905600 + 33327058249 = 109160^2 + 182557^2 .

It is a cyclic number.

It is not a de Polignac number, because 45242963849 - 2²⁸ = 44974528393 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45242963794 and 45242963803.

It is not an unprimeable number, because it can be changed into a prime (45242963819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15272984 + ... + 15275945.

It is an arithmetic number, because the mean of its divisors is an integer number (11318378565).

Almost surely, 2^45242963849 is an apocalyptic number.

It is an amenable number.

45242963849 is a deficient number, since it is larger than the sum of its proper divisors (30550411).

45242963849 is a wasteful number, since it uses less digits than its factorization.

45242963849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30550410.

The product of its digits is 14929920, while the sum is 56.

The spelling of 45242963849 in words is "forty-five billion, two hundred forty-two million, nine hundred sixty-three thousand, eight hundred forty-nine".