40355386516877 has 2 divisors, whose sum is σ = 40355386516878. Its totient is φ = 40355386516876.

The previous prime is 40355386516759. The next prime is 40355386516897. The reversal of 40355386516877 is 77861568355304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36471199861321 + 3884186655556 = 6039139^2 + 1970834^2 .

It is a cyclic number.

It is not a de Polignac number, because 40355386516877 - 2³² = 40351091549581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40355386516897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177693258438 + 20177693258439.

It is an arithmetic number, because the mean of its divisors is an integer number (20177693258439).

Almost surely, 2^{40355386516877} is an apocalyptic number.

It is an amenable number.

40355386516877 is a deficient number, since it is larger than the sum of its proper divisors (1).

40355386516877 is an equidigital number, since it uses as much as digits as its factorization.

40355386516877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032000, while the sum is 68.

The spelling of 40355386516877 in words is "forty trillion, three hundred fifty-five billion, three hundred eighty-six million, five hundred sixteen thousand, eight hundred seventy-seven".