61073159539669 has 2 divisors, whose sum is σ = 61073159539670. Its totient is φ = 61073159539668.

The previous prime is 61073159539657. The next prime is 61073159539723. The reversal of 61073159539669 is 96693595137016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60207310679569 + 865848860100 = 7759337^2 + 930510^2 .

It is a cyclic number.

It is not a de Polignac number, because 61073159539669 - 2¹³ = 61073159531477 is a prime.

It is a super-2 number, since 2×61073159539669² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61073159539598 and 61073159539607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61073159539649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30536579769834 + 30536579769835.

It is an arithmetic number, because the mean of its divisors is an integer number (30536579769835).

Almost surely, 2^{61073159539669} is an apocalyptic number.

It is an amenable number.

61073159539669 is a deficient number, since it is larger than the sum of its proper divisors (1).

61073159539669 is an equidigital number, since it uses as much as digits as its factorization.

61073159539669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248005800, while the sum is 70.

The spelling of 61073159539669 in words is "sixty-one trillion, seventy-three billion, one hundred fifty-nine million, five hundred thirty-nine thousand, six hundred sixty-nine".