77346192385 has 32 divisors (see below), whose sum is σ = 116863720704. Its totient is φ = 47738400000.

The previous prime is 77346192383. The next prime is 77346192401. The reversal of 77346192385 is 58329164377.

It is not a de Polignac number, because 77346192385 - 2¹ = 77346192383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77346192383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 955666 + ... + 1033435.

It is an arithmetic number, because the mean of its divisors is an integer number (3651991272).

Almost surely, 2^77346192385 is an apocalyptic number.

It is an amenable number.

77346192385 is a deficient number, since it is larger than the sum of its proper divisors (39517528319).

77346192385 is a wasteful number, since it uses less digits than its factorization.

77346192385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989225.

The product of its digits is 7620480, while the sum is 55.

The spelling of 77346192385 in words is "seventy-seven billion, three hundred forty-six million, one hundred ninety-two thousand, three hundred eighty-five".