40534390550 has 12 divisors (see below), whose sum is σ = 75393966516. Its totient is φ = 16213756200.

The previous prime is 40534390537. The next prime is 40534390583. The reversal of 40534390550 is 5509343504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 405343856 + ... + 405343955.

It is an arithmetic number, because the mean of its divisors is an integer number (6282830543).

Almost surely, 2^40534390550 is an apocalyptic number.

40534390550 is a deficient number, since it is larger than the sum of its proper divisors (34859575966).

40534390550 is a wasteful number, since it uses less digits than its factorization.

40534390550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810687823 (or 810687818 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 40534390550 in words is "forty billion, five hundred thirty-four million, three hundred ninety thousand, five hundred fifty".