40870138571 has 2 divisors, whose sum is σ = 40870138572. Its totient is φ = 40870138570.

The previous prime is 40870138511. The next prime is 40870138579. The reversal of 40870138571 is 17583107804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40870138571 - 2¹⁴ = 40870122187 is a prime.

It is not a weakly prime, because it can be changed into another prime (40870138579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20435069285 + 20435069286.

It is an arithmetic number, because the mean of its divisors is an integer number (20435069286).

Almost surely, 2^40870138571 is an apocalyptic number.

40870138571 is a deficient number, since it is larger than the sum of its proper divisors (1).

40870138571 is an equidigital number, since it uses as much as digits as its factorization.

40870138571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 44.

The spelling of 40870138571 in words is "forty billion, eight hundred seventy million, one hundred thirty-eight thousand, five hundred seventy-one".