73438210012 has 48 divisors (see below), whose sum is σ = 137949467040. Its totient is φ = 34101430272.

The previous prime is 73438209991. The next prime is 73438210037. The reversal of 73438210012 is 21001283437.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5217288 + ... + 5231344.

It is an arithmetic number, because the mean of its divisors is an integer number (2873947230).

Almost surely, 2^73438210012 is an apocalyptic number.

It is an amenable number.

73438210012 is a deficient number, since it is larger than the sum of its proper divisors (64511257028).

73438210012 is a wasteful number, since it uses less digits than its factorization.

73438210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15430 (or 15428 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

Adding to 73438210012 its reverse (21001283437), we get a palindrome (94439493449).

The spelling of 73438210012 in words is "seventy-three billion, four hundred thirty-eight million, two hundred ten thousand, twelve".