63403265436 has 24 divisors (see below), whose sum is σ = 169075374720. Its totient is φ = 18115218672.

The previous prime is 63403265389. The next prime is 63403265533. The reversal of 63403265436 is 63456230436.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377400306 + ... + 377400473.

It is an arithmetic number, because the mean of its divisors is an integer number (7044807280).

Almost surely, 2^63403265436 is an apocalyptic number.

It is an amenable number.

63403265436 is an abundant number, since it is smaller than the sum of its proper divisors (105672109284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63403265436 is a wasteful number, since it uses less digits than its factorization.

63403265436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754800793 (or 754800791 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 63403265436 in words is "sixty-three billion, four hundred three million, two hundred sixty-five thousand, four hundred thirty-six".