42154719481 has 8 divisors (see below), whose sum is σ = 48179802240. Its totient is φ = 36130381728.

The previous prime is 42154719479. The next prime is 42154719499. The reversal of 42154719481 is 18491745124.

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

It is not a de Polignac number, because 42154719481 - 2¹ = 42154719479 is a prime.

It is a super-2 number, since 2×42154719481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42154719421) 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, 59221 + ... + 296338.

It is an arithmetic number, because the mean of its divisors is an integer number (6022475280).

Almost surely, 2^42154719481 is an apocalyptic number.

It is an amenable number.

42154719481 is a deficient number, since it is larger than the sum of its proper divisors (6025082759).

42154719481 is a wasteful number, since it uses less digits than its factorization.

42154719481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372503.

The product of its digits is 322560, while the sum is 46.

The spelling of 42154719481 in words is "forty-two billion, one hundred fifty-four million, seven hundred nineteen thousand, four hundred eighty-one".