85749749386 has 8 divisors (see below), whose sum is σ = 146999570400. Its totient is φ = 36749892588.

The previous prime is 85749749383. The next prime is 85749749387. The reversal of 85749749386 is 68394794758.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (85749749383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3062491036 + ... + 3062491063.

It is an arithmetic number, because the mean of its divisors is an integer number (18374946300).

Almost surely, 2^85749749386 is an apocalyptic number.

85749749386 is a deficient number, since it is larger than the sum of its proper divisors (61249821014).

85749749386 is a wasteful number, since it uses less digits than its factorization.

85749749386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124982108.

The product of its digits is 365783040, while the sum is 70.

The spelling of 85749749386 in words is "eighty-five billion, seven hundred forty-nine million, seven hundred forty-nine thousand, three hundred eighty-six".