45231998784 has 336 divisors, whose sum is σ = 144930571200. Its totient is φ = 12398690304.

The previous prime is 45231998759. The next prime is 45231998809. The reversal of 45231998784 is 48789913254.

It is an interprime number because it is at equal distance from previous prime (45231998759) and next prime (45231998809).

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-3 number, since 3×45231998784³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52656147 + ... + 52657005.

Almost surely, 2^45231998784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45231998784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72465285600).

45231998784 is an abundant number, since it is smaller than the sum of its proper divisors (99698572416).

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

45231998784 is a wasteful number, since it uses less digits than its factorization.

45231998784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1093 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 60.

The spelling of 45231998784 in words is "forty-five billion, two hundred thirty-one million, nine hundred ninety-eight thousand, seven hundred eighty-four".