86742640419 has 8 divisors (see below), whose sum is σ = 118782714960. Its totient is φ = 56265496416.

The previous prime is 86742640417. The next prime is 86742640423. The reversal of 86742640419 is 91404624768.

It is a happy number.

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

It is not a de Polignac number, because 86742640419 - 2¹ = 86742640417 is a prime.

It is a super-2 number, since 2×86742640419² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86742640417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390732504 + ... + 390732725.

It is an arithmetic number, because the mean of its divisors is an integer number (14847839370).

Almost surely, 2^86742640419 is an apocalyptic number.

86742640419 is a deficient number, since it is larger than the sum of its proper divisors (32040074541).

86742640419 is a wasteful number, since it uses less digits than its factorization.

86742640419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781465269.

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 86742640419 in words is "eighty-six billion, seven hundred forty-two million, six hundred forty thousand, four hundred nineteen".