40654481280 has 256 divisors, whose sum is σ = 152877404160. Its totient is φ = 8992604160.

The previous prime is 40654481269. The next prime is 40654481297. The reversal of 40654481280 is 8218445604.

It is a super-3 number, since 3×40654481280³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367852 + ... + 465428.

It is an arithmetic number, because the mean of its divisors is an integer number (597177360).

Almost surely, 2^40654481280 is an apocalyptic number.

40654481280 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 40654481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76438702080).

40654481280 is an abundant number, since it is smaller than the sum of its proper divisors (112222922880).

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

40654481280 is a wasteful number, since it uses less digits than its factorization.

40654481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97637 (or 97625 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The spelling of 40654481280 in words is "forty billion, six hundred fifty-four million, four hundred eighty-one thousand, two hundred eighty".