85462400777 has 4 divisors (see below), whose sum is σ = 92036431620. Its totient is φ = 78888369936.

The previous prime is 85462400761. The next prime is 85462400783. The reversal of 85462400777 is 77700426458.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5253930256 + 80208470521 = 72484^2 + 283211^2 .

It is a cyclic number.

It is not a de Polignac number, because 85462400777 - 2⁴ = 85462400761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85462403777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3287015402 + ... + 3287015427.

It is an arithmetic number, because the mean of its divisors is an integer number (23009107905).

Almost surely, 2^85462400777 is an apocalyptic number.

It is an amenable number.

85462400777 is a deficient number, since it is larger than the sum of its proper divisors (6574030843).

85462400777 is a wasteful number, since it uses less digits than its factorization.

85462400777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6574030842.

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 85462400777 in words is "eighty-five billion, four hundred sixty-two million, four hundred thousand, seven hundred seventy-seven".