65912873437 has 2 divisors, whose sum is σ = 65912873438. Its totient is φ = 65912873436.

The previous prime is 65912873371. The next prime is 65912873479. The reversal of 65912873437 is 73437821956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57605280121 + 8307593316 = 240011^2 + 91146^2 .

It is a cyclic number.

It is not a de Polignac number, because 65912873437 - 2³¹ = 63765389789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65912873497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32956436718 + 32956436719.

It is an arithmetic number, because the mean of its divisors is an integer number (32956436719).

Almost surely, 2^65912873437 is an apocalyptic number.

It is an amenable number.

65912873437 is a deficient number, since it is larger than the sum of its proper divisors (1).

65912873437 is an equidigital number, since it uses as much as digits as its factorization.

65912873437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 55.

The spelling of 65912873437 in words is "sixty-five billion, nine hundred twelve million, eight hundred seventy-three thousand, four hundred thirty-seven".