45354621840 has 320 divisors, whose sum is σ = 168477788160. Its totient is φ = 9963233280.

The previous prime is 45354621839. The next prime is 45354621881. The reversal of 45354621840 is 4812645354.

It is a junction number, because it is equal to n+sod(n) for n = 45354621792 and 45354621801.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1134024 + ... + 1173336.

It is an arithmetic number, because the mean of its divisors is an integer number (526493088).

Almost surely, 2^45354621840 is an apocalyptic number.

45354621840 is a gapful number since it is divisible by the number (40) 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 45354621840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84238894080).

45354621840 is an abundant number, since it is smaller than the sum of its proper divisors (123123166320).

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

45354621840 is a wasteful number, since it uses less digits than its factorization.

45354621840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39382 (or 39376 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 45354621840 in words is "forty-five billion, three hundred fifty-four million, six hundred twenty-one thousand, eight hundred forty".