42051015510215 has 4 divisors (see below), whose sum is σ = 50461218612264. Its totient is φ = 33640812408168.

The previous prime is 42051015510193. The next prime is 42051015510253. The reversal of 42051015510215 is 51201551015024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42051015510215 - 2¹⁴ = 42051015493831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4205101551017 + ... + 4205101551026.

It is an arithmetic number, because the mean of its divisors is an integer number (12615304653066).

Almost surely, 2^{42051015510215} is an apocalyptic number.

42051015510215 is a deficient number, since it is larger than the sum of its proper divisors (8410203102049).

42051015510215 is an equidigital number, since it uses as much as digits as its factorization.

42051015510215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410203102048.

The product of its (nonzero) digits is 10000, while the sum is 32.

Adding to 42051015510215 its reverse (51201551015024), we get a palindrome (93252566525239).

The spelling of 42051015510215 in words is "forty-two trillion, fifty-one billion, fifteen million, five hundred ten thousand, two hundred fifteen".