42651721147 has 8 divisors (see below), whose sum is σ = 48756594656. Its totient is φ = 36549790272.

The previous prime is 42651721139. The next prime is 42651721159. The reversal of 42651721147 is 74112715624.

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

It is a cyclic number.

It is not a de Polignac number, because 42651721147 - 2³ = 42651721139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42651721127) 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, 704508 + ... + 762649.

It is an arithmetic number, because the mean of its divisors is an integer number (6094574332).

Almost surely, 2^42651721147 is an apocalyptic number.

42651721147 is a deficient number, since it is larger than the sum of its proper divisors (6104873509).

42651721147 is a wasteful number, since it uses less digits than its factorization.

42651721147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471317.

The product of its digits is 94080, while the sum is 40.

The spelling of 42651721147 in words is "forty-two billion, six hundred fifty-one million, seven hundred twenty-one thousand, one hundred forty-seven".