40510356012 has 144 divisors (see below), whose sum is σ = 125549948160. Its totient is φ = 11175216192.

The previous prime is 40510355969. The next prime is 40510356013. The reversal of 40510356012 is 21065301504.

40510356012 is a `hidden beast` number, since 4 + 0 + 51 + 0 + 3 + 5 + 601 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40510356013) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94663 + ... + 299969.

It is an arithmetic number, because the mean of its divisors is an integer number (871874640).

Almost surely, 2^40510356012 is an apocalyptic number.

40510356012 is a gapful number since it is divisible by the number (42) 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 40510356012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62774974080).

40510356012 is an abundant number, since it is smaller than the sum of its proper divisors (85039592148).

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

40510356012 is a wasteful number, since it uses less digits than its factorization.

40510356012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205362 (or 205348 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 40510356012 its reverse (21065301504), we get a palindrome (61575657516).

The spelling of 40510356012 in words is "forty billion, five hundred ten million, three hundred fifty-six thousand, twelve".