40067180831 has 2 divisors, whose sum is σ = 40067180832. Its totient is φ = 40067180830.

The previous prime is 40067180759. The next prime is 40067180837. The reversal of 40067180831 is 13808176004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40067180831 - 2¹⁰ = 40067179807 is a prime.

It is a super-2 number, since 2×40067180831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40067180837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20033590415 + 20033590416.

It is an arithmetic number, because the mean of its divisors is an integer number (20033590416).

Almost surely, 2^40067180831 is an apocalyptic number.

40067180831 is a deficient number, since it is larger than the sum of its proper divisors (1).

40067180831 is an equidigital number, since it uses as much as digits as its factorization.

40067180831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 40067180831 in words is "forty billion, sixty-seven million, one hundred eighty thousand, eight hundred thirty-one".