42156021514 has 8 divisors (see below), whose sum is σ = 63234904320. Its totient is φ = 21077720076.

The previous prime is 42156021493. The next prime is 42156021533. The reversal of 42156021514 is 41512065124.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201057 + ... + 353179.

It is an arithmetic number, because the mean of its divisors is an integer number (7904363040).

Almost surely, 2^42156021514 is an apocalyptic number.

42156021514 is a deficient number, since it is larger than the sum of its proper divisors (21078882806).

42156021514 is a wasteful number, since it uses less digits than its factorization.

42156021514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290684.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 42156021514 its reverse (41512065124), we get a palindrome (83668086638).

The spelling of 42156021514 in words is "forty-two billion, one hundred fifty-six million, twenty-one thousand, five hundred fourteen".