40851034735429 has 2 divisors, whose sum is σ = 40851034735430. Its totient is φ = 40851034735428.

The previous prime is 40851034735411. The next prime is 40851034735501. The reversal of 40851034735429 is 92453743015804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40304023617025 + 547011118404 = 6348545^2 + 739602^2 .

It is a cyclic number.

It is not a de Polignac number, because 40851034735429 - 2⁵ = 40851034735397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40851034735429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40851034732429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20425517367714 + 20425517367715.

It is an arithmetic number, because the mean of its divisors is an integer number (20425517367715).

Almost surely, 2^{40851034735429} is an apocalyptic number.

It is an amenable number.

40851034735429 is a deficient number, since it is larger than the sum of its proper divisors (1).

40851034735429 is an equidigital number, since it uses as much as digits as its factorization.

40851034735429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 40851034735429 in words is "forty trillion, eight hundred fifty-one billion, thirty-four million, seven hundred thirty-five thousand, four hundred twenty-nine".