45549737328 has 120 divisors (see below), whose sum is σ = 120082869760. Its totient is φ = 14877371520.

The previous prime is 45549737327. The next prime is 45549737341. The reversal of 45549737328 is 82373794554.

It is a super-5 number, since 5×45549737328⁵ (a number of 54 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45549737327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45962913 + ... + 45963903.

Almost surely, 2^45549737328 is an apocalyptic number.

45549737328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45549737328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60041434880).

45549737328 is an abundant number, since it is smaller than the sum of its proper divisors (74533132432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45549737328 is a wasteful number, since it uses less digits than its factorization.

45549737328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307 (or 1218 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 57.

The spelling of 45549737328 in words is "forty-five billion, five hundred forty-nine million, seven hundred thirty-seven thousand, three hundred twenty-eight".