45098605549 has 4 divisors (see below), whose sum is σ = 46198571580. Its totient is φ = 43998639520.

The previous prime is 45098605457. The next prime is 45098605571. The reversal of 45098605549 is 94550689054.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94550689054 = 2 ⋅47275344527.

It can be written as a sum of positive squares in 2 ways, for example, as 18233100900 + 26865504649 = 135030^2 + 163907^2 .

It is a cyclic number.

It is not a de Polignac number, because 45098605549 - 2²⁷ = 44964387821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45098605549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45098605049) 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, 549982954 + ... + 549983035.

It is an arithmetic number, because the mean of its divisors is an integer number (11549642895).

Almost surely, 2^45098605549 is an apocalyptic number.

It is an amenable number.

45098605549 is a deficient number, since it is larger than the sum of its proper divisors (1099966031).

45098605549 is a wasteful number, since it uses less digits than its factorization.

45098605549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099966030.

The product of its (nonzero) digits is 7776000, while the sum is 55.

The spelling of 45098605549 in words is "forty-five billion, ninety-eight million, six hundred five thousand, five hundred forty-nine".