786662616545 has 16 divisors (see below), whose sum is σ = 1017402628032. Its totient is φ = 580467241920.

The previous prime is 786662616541. The next prime is 786662616577. The reversal of 786662616545 is 545616266687.

It is not a de Polignac number, because 786662616545 - 2² = 786662616541 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (786662616541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4633091 + ... + 4799880.

It is an arithmetic number, because the mean of its divisors is an integer number (63587664252).

Almost surely, 2^786662616545 is an apocalyptic number.

It is an amenable number.

786662616545 is a deficient number, since it is larger than the sum of its proper divisors (230740011487).

786662616545 is a wasteful number, since it uses less digits than its factorization.

786662616545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9434272.

The product of its digits is 87091200, while the sum is 62.

The spelling of 786662616545 in words is "seven hundred eighty-six billion, six hundred sixty-two million, six hundred sixteen thousand, five hundred forty-five".