40281154560 has 264 divisors, whose sum is σ = 147786210936. Its totient is φ = 10109583360.

The previous prime is 40281154519. The next prime is 40281154579. The reversal of 40281154560 is 6545118204.

It is a happy number.

40281154560 is a `hidden beast` number, since 4 + 0 + 2 + 81 + 15 + 4 + 560 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10121969664 + 30159184896 = 100608^2 + 173664^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 757650 + ... + 809070.

Almost surely, 2^40281154560 is an apocalyptic number.

40281154560 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 40281154560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73893105468).

40281154560 is an abundant number, since it is smaller than the sum of its proper divisors (107505056376).

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

40281154560 is a wasteful number, since it uses less digits than its factorization.

40281154560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51469 (or 51448 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 40281154560 in words is "forty billion, two hundred eighty-one million, one hundred fifty-four thousand, five hundred sixty".