86648428673731 has 4 divisors (see below), whose sum is σ = 86648753895952. Its totient is φ = 86648103451512.

The previous prime is 86648428673641. The next prime is 86648428673761. The reversal of 86648428673731 is 13737682484668.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86648428673731 - 2²³ = 86648420285123 is a prime.

It is a super-2 number, since 2×86648428673731² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86648428673761) 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, 162211140 + ... + 162744433.

It is an arithmetic number, because the mean of its divisors is an integer number (21662188473988).

Almost surely, 2^{86648428673731} is an apocalyptic number.

86648428673731 is a deficient number, since it is larger than the sum of its proper divisors (325222221).

86648428673731 is a wasteful number, since it uses less digits than its factorization.

86648428673731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325222220.

The product of its digits is 1560674304, while the sum is 73.

The spelling of 86648428673731 in words is "eighty-six trillion, six hundred forty-eight billion, four hundred twenty-eight million, six hundred seventy-three thousand, seven hundred thirty-one".