73551944412 has 36 divisors (see below), whose sum is σ = 186440894640. Its totient is φ = 24449017152.

The previous prime is 73551944399. The next prime is 73551944413. The reversal of 73551944412 is 21444915537.

73551944412 is a `hidden beast` number, since 7 + 3 + 551 + 94 + 4 + 4 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73551944413) 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, 2832633 + ... + 2858480.

It is an arithmetic number, because the mean of its divisors is an integer number (5178913740).

Almost surely, 2^73551944412 is an apocalyptic number.

It is an amenable number.

73551944412 is an abundant number, since it is smaller than the sum of its proper divisors (112888950228).

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

73551944412 is a wasteful number, since it uses less digits than its factorization.

73551944412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691482 (or 5691477 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The spelling of 73551944412 in words is "seventy-three billion, five hundred fifty-one million, nine hundred forty-four thousand, four hundred twelve".