45136815477 has 16 divisors (see below), whose sum is σ = 67046730240. Its totient is φ = 26818690752.

The previous prime is 45136815461. The next prime is 45136815539. The reversal of 45136815477 is 77451863154.

It is a happy number.

It is not a de Polignac number, because 45136815477 - 2⁴ = 45136815461 is a prime.

It is a super-2 number, since 2×45136815477² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45136815377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19953253 + ... + 19955514.

It is an arithmetic number, because the mean of its divisors is an integer number (4190420640).

Almost surely, 2^45136815477 is an apocalyptic number.

It is an amenable number.

45136815477 is a deficient number, since it is larger than the sum of its proper divisors (21909914763).

45136815477 is a wasteful number, since it uses less digits than its factorization.

45136815477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39908812.

The product of its digits is 2822400, while the sum is 51.

The spelling of 45136815477 in words is "forty-five billion, one hundred thirty-six million, eight hundred fifteen thousand, four hundred seventy-seven".