40319826547 has 72 divisors (see below), whose sum is σ = 55699123200. Its totient is φ = 28907746560.

The previous prime is 40319826499. The next prime is 40319826553. The reversal of 40319826547 is 74562891304.

It is a happy number.

It is not a de Polignac number, because 40319826547 - 2¹⁹ = 40319302259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 40319826547.

It is not an unprimeable number, because it can be changed into a prime (40319826047) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31523854 + ... + 31525132.

It is a 1-persistent number, because it is pandigital, but 2⋅40319826547 = 80639653094 is not.

Almost surely, 2^40319826547 is an apocalyptic number.

40319826547 is a deficient number, since it is larger than the sum of its proper divisors (15379296653).

40319826547 is a wasteful number, since it uses less digits than its factorization.

40319826547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 40319826547 in words is "forty billion, three hundred nineteen million, eight hundred twenty-six thousand, five hundred forty-seven".