71902763533 has 2 divisors, whose sum is σ = 71902763534. Its totient is φ = 71902763532.

The previous prime is 71902763489. The next prime is 71902763557. The reversal of 71902763533 is 33536720917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41486357124 + 30416406409 = 203682^2 + 174403^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71902763533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71902763573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35951381766 + 35951381767.

It is an arithmetic number, because the mean of its divisors is an integer number (35951381767).

Almost surely, 2^71902763533 is an apocalyptic number.

It is an amenable number.

71902763533 is a deficient number, since it is larger than the sum of its proper divisors (1).

71902763533 is an equidigital number, since it uses as much as digits as its factorization.

71902763533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 714420, while the sum is 46.

The spelling of 71902763533 in words is "seventy-one billion, nine hundred two million, seven hundred sixty-three thousand, five hundred thirty-three".