86442263725 has 24 divisors (see below), whose sum is σ = 107905773152. Its totient is φ = 68692276800.

The previous prime is 86442263723. The next prime is 86442263759. The reversal of 86442263725 is 52736224468.

It is a happy number.

It is not a de Polignac number, because 86442263725 - 2¹ = 86442263723 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 (86442263723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2743159 + ... + 2774491.

Almost surely, 2^86442263725 is an apocalyptic number.

It is an amenable number.

86442263725 is a deficient number, since it is larger than the sum of its proper divisors (21463509427).

86442263725 is a wasteful number, since it uses less digits than its factorization.

86442263725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32077 (or 32072 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 49.

The spelling of 86442263725 in words is "eighty-six billion, four hundred forty-two million, two hundred sixty-three thousand, seven hundred twenty-five".