40505464385450 has 24 divisors (see below), whose sum is σ = 75347348880672. Its totient is φ = 16200640566320.

The previous prime is 40505464385423. The next prime is 40505464385461. The reversal of 40505464385450 is 5458346450504.

It is a junction number, because it is equal to n+sod(n) for n = 40505464385392 and 40505464385401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38100104 + ... + 39148803.

It is an arithmetic number, because the mean of its divisors is an integer number (3139472870028).

Almost surely, 2^{40505464385450} is an apocalyptic number.

40505464385450 is a deficient number, since it is larger than the sum of its proper divisors (34841884495222).

40505464385450 is a wasteful number, since it uses less digits than its factorization.

40505464385450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77259406 (or 77259401 counting only the distinct ones).

The product of its (nonzero) digits is 23040000, while the sum is 53.

The spelling of 40505464385450 in words is "forty trillion, five hundred five billion, four hundred sixty-four million, three hundred eighty-five thousand, four hundred fifty".