45409718797 has 4 divisors (see below), whose sum is σ = 46517272956. Its totient is φ = 44302164640.

The previous prime is 45409718779. The next prime is 45409718833. The reversal of 45409718797 is 79781790454.

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 5261181156 + 40148537641 = 72534^2 + 200371^2 .

It is a cyclic number.

It is not a de Polignac number, because 45409718797 - 2¹¹ = 45409716749 is a prime.

It is a super-2 number, since 2×45409718797² (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 (45409728797) 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, 553777018 + ... + 553777099.

It is an arithmetic number, because the mean of its divisors is an integer number (11629318239).

Almost surely, 2^45409718797 is an apocalyptic number.

It is an amenable number.

45409718797 is a deficient number, since it is larger than the sum of its proper divisors (1107554159).

45409718797 is a wasteful number, since it uses less digits than its factorization.

45409718797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107554158.

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 45409718797 in words is "forty-five billion, four hundred nine million, seven hundred eighteen thousand, seven hundred ninety-seven".