75838666494 has 16 divisors (see below), whose sum is σ = 152009236368. Its totient is φ = 25224238272.

The previous prime is 75838666489. The next prime is 75838666537. The reversal of 75838666494 is 49466683857.

It is a congruent 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, 13826337 + ... + 13831820.

It is an arithmetic number, because the mean of its divisors is an integer number (9500577273).

Almost surely, 2^75838666494 is an apocalyptic number.

75838666494 is an abundant number, since it is smaller than the sum of its proper divisors (76170569874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75838666494 is a wasteful number, since it uses less digits than its factorization.

75838666494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27658619.

The product of its digits is 209018880, while the sum is 66.

The spelling of 75838666494 in words is "seventy-five billion, eight hundred thirty-eight million, six hundred sixty-six thousand, four hundred ninety-four".