40780155109567 has 2 divisors, whose sum is σ = 40780155109568. Its totient is φ = 40780155109566.

The previous prime is 40780155109493. The next prime is 40780155109621. The reversal of 40780155109567 is 76590155108704.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40780155109567 - 2¹¹ = 40780155107519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40780155149567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20390077554783 + 20390077554784.

It is an arithmetic number, because the mean of its divisors is an integer number (20390077554784).

Almost surely, 2^{40780155109567} is an apocalyptic number.

40780155109567 is a deficient number, since it is larger than the sum of its proper divisors (1).

40780155109567 is an equidigital number, since it uses as much as digits as its factorization.

40780155109567 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 58.

The spelling of 40780155109567 in words is "forty trillion, seven hundred eighty billion, one hundred fifty-five million, one hundred nine thousand, five hundred sixty-seven".