40930121887 has 2 divisors, whose sum is σ = 40930121888. Its totient is φ = 40930121886.

The previous prime is 40930121849. The next prime is 40930121923. The reversal of 40930121887 is 78812103904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40930121887 - 2¹⁵ = 40930089119 is a prime.

It is a super-3 number, since 3×40930121887³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40930121807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20465060943 + 20465060944.

It is an arithmetic number, because the mean of its divisors is an integer number (20465060944).

Almost surely, 2^40930121887 is an apocalyptic number.

40930121887 is a deficient number, since it is larger than the sum of its proper divisors (1).

40930121887 is an equidigital number, since it uses as much as digits as its factorization.

40930121887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 40930121887 in words is "forty billion, nine hundred thirty million, one hundred twenty-one thousand, eight hundred eighty-seven".