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71863760673 = 3227312923787
BaseRepresentation
bin100001011101101101…
…0011111011100100001
320212111022100021212200
41002323122133130201
52134134110320143
653002545443413
75122564613145
oct1027332373441
9225438307780
1071863760673
1128528246051
1211b17040569
136a13600313
14369a369225
151d090611d3
hex10bb69f721

71863760673 has 12 divisors (see below), whose sum is σ = 103841254608. Its totient is φ = 47891614680.

The previous prime is 71863760671. The next prime is 71863760701. The reversal of 71863760673 is 37606736817.

It is a happy number.

It is not a de Polignac number, because 71863760673 - 21 = 71863760671 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71863760671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1437315 + ... + 1486472.

It is an arithmetic number, because the mean of its divisors is an integer number (8653437884).

Almost surely, 271863760673 is an apocalyptic number.

It is an amenable number.

71863760673 is a deficient number, since it is larger than the sum of its proper divisors (31977493935).

71863760673 is a wasteful number, since it uses less digits than its factorization.

71863760673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926524 (or 2926521 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The spelling of 71863760673 in words is "seventy-one billion, eight hundred sixty-three million, seven hundred sixty thousand, six hundred seventy-three".

Divisors: 1 3 9 2731 8193 24579 2923787 8771361 26314083 7984862297 23954586891 71863760673