45531451049 has 16 divisors (see below), whose sum is σ = 52524920448. Its totient is φ = 38661931392.

The previous prime is 45531451039. The next prime is 45531451051. The reversal of 45531451049 is 94015413554.

It is a de Polignac number, because none of the positive numbers 2^k-45531451049 is a prime.

It is a super-2 number, since 2×45531451049² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45531450997 and 45531451015.

It is not an unprimeable number, because it can be changed into a prime (45531451039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250454 + ... + 392160.

It is an arithmetic number, because the mean of its divisors is an integer number (3282807528).

Almost surely, 2^45531451049 is an apocalyptic number.

It is an amenable number.

45531451049 is a deficient number, since it is larger than the sum of its proper divisors (6993469399).

45531451049 is a wasteful number, since it uses less digits than its factorization.

45531451049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142144.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 45531451049 in words is "forty-five billion, five hundred thirty-one million, four hundred fifty-one thousand, forty-nine".