68574993215 has 16 divisors (see below), whose sum is σ = 84612857472. Its totient is φ = 53314884864.

The previous prime is 68574993191. The next prime is 68574993217. The reversal of 68574993215 is 51239947586.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68574993215 - 2¹⁴ = 68574976831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68574993217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57719 + ... + 374808.

It is an arithmetic number, because the mean of its divisors is an integer number (5288303592).

Almost surely, 2^68574993215 is an apocalyptic number.

68574993215 is a deficient number, since it is larger than the sum of its proper divisors (16037864257).

68574993215 is a wasteful number, since it uses less digits than its factorization.

68574993215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433426.

The product of its digits is 16329600, while the sum is 59.

The spelling of 68574993215 in words is "sixty-eight billion, five hundred seventy-four million, nine hundred ninety-three thousand, two hundred fifteen".