45509149488 has 80 divisors (see below), whose sum is σ = 128534380416. Its totient is φ = 13760401920.

The previous prime is 45509149487. The next prime is 45509149489. The reversal of 45509149488 is 88494190554.

It is an interprime number because it is at equal distance from previous prime (45509149487) and next prime (45509149489).

It is a super-2 number, since 2×45509149488² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45509149487) 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, 146995 + ... + 335597.

Almost surely, 2^45509149488 is an apocalyptic number.

45509149488 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 45509149488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64267190208).

45509149488 is an abundant number, since it is smaller than the sum of its proper divisors (83025230928).

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

45509149488 is a wasteful number, since it uses less digits than its factorization.

45509149488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189082 (or 189076 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 57.

The spelling of 45509149488 in words is "forty-five billion, five hundred nine million, one hundred forty-nine thousand, four hundred eighty-eight".