2151323514015 has 24 divisors (see below), whose sum is σ = 3727263465360. Its totient is φ = 1059113113344.

The previous prime is 2151323514007. The next prime is 2151323514073. The reversal of 2151323514015 is 5104153231512.

It is not a de Polignac number, because 2151323514015 - 2³ = 2151323514007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424321630 + ... + 424326699.

It is an arithmetic number, because the mean of its divisors is an integer number (155302644390).

Almost surely, 2^{2151323514015} is an apocalyptic number.

2151323514015 is a deficient number, since it is larger than the sum of its proper divisors (1575939951345).

2151323514015 is a wasteful number, since it uses less digits than its factorization.

2151323514015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848648363 (or 848648350 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 2151323514015 its reverse (5104153231512), we get a palindrome (7255476745527).

The spelling of 2151323514015 in words is "two trillion, one hundred fifty-one billion, three hundred twenty-three million, five hundred fourteen thousand, fifteen".