2151510312215 has 8 divisors (see below), whose sum is σ = 2816522590608. Its totient is φ = 1564734772480.

The previous prime is 2151510312173. The next prime is 2151510312299. The reversal of 2151510312215 is 5122130151512.

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

It is not a de Polignac number, because 2151510312215 - 2⁶ = 2151510312151 is a prime.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 19559184602 + ... + 19559184711.

It is an arithmetic number, because the mean of its divisors is an integer number (352065323826).

Almost surely, 2^{2151510312215} is an apocalyptic number.

2151510312215 is a deficient number, since it is larger than the sum of its proper divisors (665012278393).

2151510312215 is a wasteful number, since it uses less digits than its factorization.

2151510312215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39118369329.

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 2151510312215 its reverse (5122130151512), we get a palindrome (7273640463727).

The spelling of 2151510312215 in words is "two trillion, one hundred fifty-one billion, five hundred ten million, three hundred twelve thousand, two hundred fifteen".