15767728676345 has 8 divisors (see below), whose sum is σ = 18937214835264. Its totient is φ = 12603555991984.

The previous prime is 15767728676321. The next prime is 15767728676387. The reversal of 15767728676345 is 54367682776751.

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

It is a cyclic number.

It is not a de Polignac number, because 15767728676345 - 2⁶ = 15767728676281 is a prime.

It is a super-2 number, since 2×15767728676345² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328362109 + ... + 1328373978.

It is an arithmetic number, because the mean of its divisors is an integer number (2367151854408).

Almost surely, 2^{15767728676345} is an apocalyptic number.

It is an amenable number.

15767728676345 is a deficient number, since it is larger than the sum of its proper divisors (3169486158919).

15767728676345 is a wasteful number, since it uses less digits than its factorization.

15767728676345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656737279.

The product of its digits is 2489356800, while the sum is 74.

The spelling of 15767728676345 in words is "fifteen trillion, seven hundred sixty-seven billion, seven hundred twenty-eight million, six hundred seventy-six thousand, three hundred forty-five".