40581169421964 has 24 divisors (see below), whose sum is σ = 94786313866608. Its totient is φ = 13513210967040.

The previous prime is 40581169421957. The next prime is 40581169422007. The reversal of 40581169421964 is 46912496118504.

It is a junction number, because it is equal to n+sod(n) for n = 40581169421898 and 40581169421907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730676157 + ... + 1730699604.

It is an arithmetic number, because the mean of its divisors is an integer number (3949429744442).

Almost surely, 2^{40581169421964} is an apocalyptic number.

It is an amenable number.

40581169421964 is an abundant number, since it is smaller than the sum of its proper divisors (54205144444644).

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

40581169421964 is a wasteful number, since it uses less digits than its factorization.

40581169421964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3461376745 (or 3461376743 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 60.

The spelling of 40581169421964 in words is "forty trillion, five hundred eighty-one billion, one hundred sixty-nine million, four hundred twenty-one thousand, nine hundred sixty-four".