2151686715325 has 24 divisors (see below), whose sum is σ = 3066282406080. Its totient is φ = 1467199603200.

The previous prime is 2151686715293. The next prime is 2151686715331. The reversal of 2151686715325 is 5235176861512.

It is a happy number.

It is not a de Polignac number, because 2151686715325 - 2⁵ = 2151686715293 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, 34313236 + ... + 34375885.

It is an arithmetic number, because the mean of its divisors is an integer number (127761766920).

Almost surely, 2^{2151686715325} is an apocalyptic number.

2151686715325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2151686715325 is a deficient number, since it is larger than the sum of its proper divisors (914595690755).

2151686715325 is a wasteful number, since it uses less digits than its factorization.

2151686715325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68689317 (or 68689312 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 52.

The spelling of 2151686715325 in words is "two trillion, one hundred fifty-one billion, six hundred eighty-six million, seven hundred fifteen thousand, three hundred twenty-five".