73436063436 has 18 divisors (see below), whose sum is σ = 185630049332. Its totient is φ = 24478687800.

The previous prime is 73436063431. The next prime is 73436063453. The reversal of 73436063436 is 63436063437.

73436063436 is a `hidden beast` number, since 7 + 3 + 4 + 3 + 6 + 0 + 634 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×73436063436² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73436063391 and 73436063400.

It is not an unprimeable number, because it can be changed into a prime (73436063431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1019945290 + ... + 1019945361.

Almost surely, 2^73436063436 is an apocalyptic number.

It is an amenable number.

73436063436 is an abundant number, since it is smaller than the sum of its proper divisors (112193985896).

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

73436063436 is a wasteful number, since it uses less digits than its factorization.

73436063436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039890661 (or 2039890656 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 45.

Subtracting from 73436063436 its reverse (63436063437), we obtain a palindrome (9999999999).

The spelling of 73436063436 in words is "seventy-three billion, four hundred thirty-six million, sixty-three thousand, four hundred thirty-six".