45134578909 has 16 divisors (see below), whose sum is σ = 51869910400. Its totient is φ = 38471734080.

The previous prime is 45134578903. The next prime is 45134578963. The reversal of 45134578909 is 90987543154.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 45134578909 - 2³ = 45134578901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45134578909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45134578901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886474 + ... + 936004.

It is an arithmetic number, because the mean of its divisors is an integer number (3241869400).

Almost surely, 2^45134578909 is an apocalyptic number.

It is an amenable number.

45134578909 is a deficient number, since it is larger than the sum of its proper divisors (6735331491).

45134578909 is a wasteful number, since it uses less digits than its factorization.

45134578909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50260.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 45134578909 in words is "forty-five billion, one hundred thirty-four million, five hundred seventy-eight thousand, nine hundred nine".