40890692713 has 8 divisors (see below), whose sum is σ = 44038027656. Its totient is φ = 37743628800.

The previous prime is 40890692683. The next prime is 40890692747. The reversal of 40890692713 is 31729609804.

It can be written as a sum of positive squares in 4 ways, for example, as 341621289 + 40549071424 = 18483^2 + 201368^2 .

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 40890692713 - 2¹³ = 40890684521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40890690713) 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, 333753 + ... + 439513.

It is an arithmetic number, because the mean of its divisors is an integer number (5504753457).

Almost surely, 2^40890692713 is an apocalyptic number.

It is an amenable number.

40890692713 is a deficient number, since it is larger than the sum of its proper divisors (3147334943).

40890692713 is a wasteful number, since it uses less digits than its factorization.

40890692713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135515.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 40890692713 in words is "forty billion, eight hundred ninety million, six hundred ninety-two thousand, seven hundred thirteen".