40803472391 has 16 divisors (see below), whose sum is σ = 46559197440. Its totient is φ = 35396507520.

The previous prime is 40803472357. The next prime is 40803472393. The reversal of 40803472391 is 19327430804.

It is not a de Polignac number, because 40803472391 - 2⁶ = 40803472327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40803472393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86450 + ... + 298463.

It is an arithmetic number, because the mean of its divisors is an integer number (2909949840).

Almost surely, 2^40803472391 is an apocalyptic number.

40803472391 is a deficient number, since it is larger than the sum of its proper divisors (5755725049).

40803472391 is a wasteful number, since it uses less digits than its factorization.

40803472391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385366.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 40803472391 in words is "forty billion, eight hundred three million, four hundred seventy-two thousand, three hundred ninety-one".