43016513077 has 2 divisors, whose sum is σ = 43016513078. Its totient is φ = 43016513076.

The previous prime is 43016513069. The next prime is 43016513123. The reversal of 43016513077 is 77031561034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27551352196 + 15465160881 = 165986^2 + 124359^2 .

It is a cyclic number.

It is not a de Polignac number, because 43016513077 - 2³ = 43016513069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43016510077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21508256538 + 21508256539.

It is an arithmetic number, because the mean of its divisors is an integer number (21508256539).

Almost surely, 2^43016513077 is an apocalyptic number.

It is an amenable number.

43016513077 is a deficient number, since it is larger than the sum of its proper divisors (1).

43016513077 is an equidigital number, since it uses as much as digits as its factorization.

43016513077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The spelling of 43016513077 in words is "forty-three billion, sixteen million, five hundred thirteen thousand, seventy-seven".