86235263978 has 8 divisors (see below), whose sum is σ = 131124853668. Its totient is φ = 42526979424.

The previous prime is 86235263971. The next prime is 86235263981. The reversal of 86235263978 is 87936253268.

It can be written as a sum of positive squares in 2 ways, for example, as 85180508449 + 1054755529 = 291857^2 + 32477^2 .

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 (86235263971) 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, 295326101 + ... + 295326392.

Almost surely, 2^86235263978 is an apocalyptic number.

86235263978 is a deficient number, since it is larger than the sum of its proper divisors (44889589690).

86235263978 is a wasteful number, since it uses less digits than its factorization.

86235263978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590652568.

The product of its digits is 26127360, while the sum is 59.

The spelling of 86235263978 in words is "eighty-six billion, two hundred thirty-five million, two hundred sixty-three thousand, nine hundred seventy-eight".