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86795747431 is a prime number
BaseRepresentation
bin101000011010101101…
…1100000000001100111
322022000221111210221021
41100311123200001213
52410224202404211
6103512354032011
76161610452221
oct1206533400147
9268027453837
1086795747431
113389aa33778
12149a3878607
138253024c43
1442b5527411
1523ceddd771
hex14356e0067

86795747431 has 2 divisors, whose sum is σ = 86795747432. Its totient is φ = 86795747430.

The previous prime is 86795747429. The next prime is 86795747509. The reversal of 86795747431 is 13474759768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86795747431 - 21 = 86795747429 is a prime.

It is a super-2 number, since 2×867957474312 (a number of 23 digits) contains 22 as substring.

Together with 86795747429, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 86795747431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86795742431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43397873715 + 43397873716.

It is an arithmetic number, because the mean of its divisors is an integer number (43397873716).

Almost surely, 286795747431 is an apocalyptic number.

86795747431 is a deficient number, since it is larger than the sum of its proper divisors (1).

86795747431 is an equidigital number, since it uses as much as digits as its factorization.

86795747431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35562240, while the sum is 61.

The spelling of 86795747431 in words is "eighty-six billion, seven hundred ninety-five million, seven hundred forty-seven thousand, four hundred thirty-one".