40905719885 has 16 divisors (see below), whose sum is σ = 52018046640. Its totient is φ = 30825500160.

The previous prime is 40905719879. The next prime is 40905719891. The reversal of 40905719885 is 58891750904.

It is an interprime number because it is at equal distance from previous prime (40905719879) and next prime (40905719891).

It can be written as a sum of positive squares in 8 ways, for example, as 9818035396 + 31087684489 = 99086^2 + 176317^2 .

It is not a de Polignac number, because 40905719885 - 2⁸ = 40905719629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40905719885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3434402 + ... + 3446291.

It is an arithmetic number, because the mean of its divisors is an integer number (3251127915).

Almost surely, 2^40905719885 is an apocalyptic number.

It is an amenable number.

40905719885 is a deficient number, since it is larger than the sum of its proper divisors (11112326755).

40905719885 is a wasteful number, since it uses less digits than its factorization.

40905719885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880768.

The product of its (nonzero) digits is 3628800, while the sum is 56.

The spelling of 40905719885 in words is "forty billion, nine hundred five million, seven hundred nineteen thousand, eight hundred eighty-five".