65402062789 has 12 divisors (see below), whose sum is σ = 78886226784. Its totient is φ = 53108439912.

The previous prime is 65402062763. The next prime is 65402062819. The reversal of 65402062789 is 98726020456.

65402062789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65402062789 - 2¹¹ = 65402060741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65402062489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12938127 + ... + 12943180.

It is an arithmetic number, because the mean of its divisors is an integer number (6573852232).

Almost surely, 2^65402062789 is an apocalyptic number.

It is an amenable number.

65402062789 is a deficient number, since it is larger than the sum of its proper divisors (13484163995).

65402062789 is a wasteful number, since it uses less digits than its factorization.

65402062789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25881352 (or 25881333 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 65402062789 in words is "sixty-five billion, four hundred two million, sixty-two thousand, seven hundred eighty-nine".