40954387913 has 8 divisors (see below), whose sum is σ = 42064552200. Its totient is φ = 39844396800.

The previous prime is 40954387879. The next prime is 40954387921. The reversal of 40954387913 is 31978345904.

It can be written as a sum of positive squares in 4 ways, for example, as 29712451129 + 11241936784 = 172373^2 + 106028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40954387913 - 2⁶ = 40954387849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40954387933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 541763 + ... + 612711.

It is an arithmetic number, because the mean of its divisors is an integer number (5258069025).

Almost surely, 2^40954387913 is an apocalyptic number.

It is an amenable number.

40954387913 is a deficient number, since it is larger than the sum of its proper divisors (1110164287).

40954387913 is a wasteful number, since it uses less digits than its factorization.

40954387913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86587.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 40954387913 in words is "forty billion, nine hundred fifty-four million, three hundred eighty-seven thousand, nine hundred thirteen".