40521725262436 has 24 divisors (see below), whose sum is σ = 77367137609664. Its totient is φ = 18417185006880.

The previous prime is 40521725262409. The next prime is 40521725262443. The reversal of 40521725262436 is 63426252712504.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40521725262436.

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, 44065275 + ... + 44975458.

It is an arithmetic number, because the mean of its divisors is an integer number (3223630733736).

Almost surely, 2^{40521725262436} is an apocalyptic number.

It is an amenable number.

40521725262436 is a deficient number, since it is larger than the sum of its proper divisors (36845412347228).

40521725262436 is a wasteful number, since it uses less digits than its factorization.

40521725262436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89051091 (or 89051089 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 40521725262436 in words is "forty trillion, five hundred twenty-one billion, seven hundred twenty-five million, two hundred sixty-two thousand, four hundred thirty-six".