86204337731 has 2 divisors, whose sum is σ = 86204337732. Its totient is φ = 86204337730.

The previous prime is 86204337727. The next prime is 86204337781. The reversal of 86204337731 is 13773340268.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86204337731 - 2² = 86204337727 is a prime.

It is a super-2 number, since 2×86204337731² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86204337721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43102168865 + 43102168866.

It is an arithmetic number, because the mean of its divisors is an integer number (43102168866).

Almost surely, 2^86204337731 is an apocalyptic number.

86204337731 is a deficient number, since it is larger than the sum of its proper divisors (1).

86204337731 is an equidigital number, since it uses as much as digits as its factorization.

86204337731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 44.

Adding to 86204337731 its reverse (13773340268), we get a palindrome (99977677999).

The spelling of 86204337731 in words is "eighty-six billion, two hundred four million, three hundred thirty-seven thousand, seven hundred thirty-one".