73432700421668 has 48 divisors (see below), whose sum is σ = 150837658164480. Its totient is φ = 30619992283776.

The previous prime is 73432700421653. The next prime is 73432700421749. The reversal of 73432700421668 is 86612400723437.

It is a happy number.

It is a super-2 number, since 2×73432700421668² (a number of 29 digits) contains 22 as substring.

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, 54993146 + ... + 56312622.

It is an arithmetic number, because the mean of its divisors is an integer number (3142451211760).

Almost surely, 2^{73432700421668} is an apocalyptic number.

It is an amenable number.

73432700421668 is an abundant number, since it is smaller than the sum of its proper divisors (77404957742812).

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

73432700421668 is a wasteful number, since it uses less digits than its factorization.

73432700421668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373244 (or 1373242 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 53.

The spelling of 73432700421668 in words is "seventy-three trillion, four hundred thirty-two billion, seven hundred million, four hundred twenty-one thousand, six hundred sixty-eight".