45649617719 has 4 divisors (see below), whose sum is σ = 45650977680. Its totient is φ = 45648257760.

The previous prime is 45649617709. The next prime is 45649617749. The reversal of 45649617719 is 91771694654.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45649617719 - 2⁸ = 45649617463 is a prime.

It is a super-2 number, since 2×45649617719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45649617709) 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, 628322 + ... + 697199.

It is an arithmetic number, because the mean of its divisors is an integer number (11412744420).

Almost surely, 2^45649617719 is an apocalyptic number.

45649617719 is a deficient number, since it is larger than the sum of its proper divisors (1359961).

45649617719 is a wasteful number, since it uses less digits than its factorization.

45649617719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359960.

The product of its digits is 11430720, while the sum is 59.

The spelling of 45649617719 in words is "forty-five billion, six hundred forty-nine million, six hundred seventeen thousand, seven hundred nineteen".