42673532144721 has 8 divisors (see below), whose sum is σ = 56899337614464. Its totient is φ = 28448374052400.

The previous prime is 42673532144687. The next prime is 42673532144753. The reversal of 42673532144721 is 12744123537624.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42673532144721 - 2⁶ = 42673532144657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42673532144021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161690526 + ... + 161954231.

It is an arithmetic number, because the mean of its divisors is an integer number (7112417201808).

Almost surely, 2^{42673532144721} is an apocalyptic number.

It is an amenable number.

42673532144721 is a deficient number, since it is larger than the sum of its proper divisors (14225805469743).

42673532144721 is a wasteful number, since it uses less digits than its factorization.

42673532144721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323688711.

The product of its digits is 6773760, while the sum is 51.

The spelling of 42673532144721 in words is "forty-two trillion, six hundred seventy-three billion, five hundred thirty-two million, one hundred forty-four thousand, seven hundred twenty-one".