45443261553 has 48 divisors (see below), whose sum is σ = 64753069248. Its totient is φ = 28327948800.

The previous prime is 45443261531. The next prime is 45443261573. The reversal of 45443261553 is 35516234454.

It is not a de Polignac number, because 45443261553 - 2⁹ = 45443261041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45443261573) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12645925 + ... + 12649517.

It is an arithmetic number, because the mean of its divisors is an integer number (1349022276).

Almost surely, 2^45443261553 is an apocalyptic number.

It is an amenable number.

45443261553 is a deficient number, since it is larger than the sum of its proper divisors (19309807695).

45443261553 is a wasteful number, since it uses less digits than its factorization.

45443261553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3806 (or 3775 counting only the distinct ones).

The product of its digits is 864000, while the sum is 42.

The spelling of 45443261553 in words is "forty-five billion, four hundred forty-three million, two hundred sixty-one thousand, five hundred fifty-three".