40612981540 has 24 divisors (see below), whose sum is σ = 85297689792. Its totient is φ = 16243206240.

The previous prime is 40612981523. The next prime is 40612981543. The reversal of 40612981540 is 4518921604.

40612981540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 40612981493 and 40612981502.

It is not an unprimeable number, because it can be changed into a prime (40612981543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49425 + ... + 289255.

It is an arithmetic number, because the mean of its divisors is an integer number (3554070408).

Almost surely, 2^40612981540 is an apocalyptic number.

It is an amenable number.

40612981540 is an abundant number, since it is smaller than the sum of its proper divisors (44684708252).

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

40612981540 is a wasteful number, since it uses less digits than its factorization.

40612981540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248307 (or 248305 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 40612981540 in words is "forty billion, six hundred twelve million, nine hundred eighty-one thousand, five hundred forty".