40776706697 has 2 divisors, whose sum is σ = 40776706698. Its totient is φ = 40776706696.

The previous prime is 40776706667. The next prime is 40776706703. The reversal of 40776706697 is 79660767704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38832249481 + 1944457216 = 197059^2 + 44096^2 .

It is a cyclic number.

It is not a de Polignac number, because 40776706697 - 2¹⁶ = 40776641161 is a prime.

It is not a weakly prime, because it can be changed into another prime (40776706667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20388353348 + 20388353349.

It is an arithmetic number, because the mean of its divisors is an integer number (20388353349).

Almost surely, 2^40776706697 is an apocalyptic number.

It is an amenable number.

40776706697 is a deficient number, since it is larger than the sum of its proper divisors (1).

40776706697 is an equidigital number, since it uses as much as digits as its factorization.

40776706697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18670176, while the sum is 59.

The spelling of 40776706697 in words is "forty billion, seven hundred seventy-six million, seven hundred six thousand, six hundred ninety-seven".