77371097345 has 16 divisors (see below), whose sum is σ = 94379329872. Its totient is φ = 60874460160.

The previous prime is 77371097333. The next prime is 77371097351. The reversal of 77371097345 is 54379017377.

It can be written as a sum of positive squares in 8 ways, for example, as 4047122689 + 73323974656 = 63617^2 + 270784^2 .

It is not a de Polignac number, because 77371097345 - 2⁶ = 77371097281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4234349 + ... + 4252581.

It is an arithmetic number, because the mean of its divisors is an integer number (5898708117).

Almost surely, 2^77371097345 is an apocalyptic number.

It is an amenable number.

77371097345 is a deficient number, since it is larger than the sum of its proper divisors (17008232527).

77371097345 is a wasteful number, since it uses less digits than its factorization.

77371097345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32212.

The product of its (nonzero) digits is 3889620, while the sum is 53.

The spelling of 77371097345 in words is "seventy-seven billion, three hundred seventy-one million, ninety-seven thousand, three hundred forty-five".