45404821551 has 16 divisors (see below), whose sum is σ = 61847760384. Its totient is φ = 29616297024.

The previous prime is 45404821549. The next prime is 45404821577. The reversal of 45404821551 is 15512840454.

It is a happy number.

It is not a de Polignac number, because 45404821551 - 2¹ = 45404821549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45404821051) 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, 401355 + ... + 501891.

It is an arithmetic number, because the mean of its divisors is an integer number (3865485024).

Almost surely, 2^45404821551 is an apocalyptic number.

45404821551 is a deficient number, since it is larger than the sum of its proper divisors (16442938833).

45404821551 is a wasteful number, since it uses less digits than its factorization.

45404821551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103790.

The product of its (nonzero) digits is 128000, while the sum is 39.

The spelling of 45404821551 in words is "forty-five billion, four hundred four million, eight hundred twenty-one thousand, five hundred fifty-one".