61452062069 has 2 divisors, whose sum is σ = 61452062070. Its totient is φ = 61452062068.

The previous prime is 61452062029. The next prime is 61452062099. The reversal of 61452062069 is 96026025416.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61451931025 + 131044 = 247895^2 + 362^2 .

It is a cyclic number.

It is not a de Polignac number, because 61452062069 - 2¹² = 61452057973 is a prime.

It is a super-2 number, since 2×61452062069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61452062029) 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, 30726031034 + 30726031035.

It is an arithmetic number, because the mean of its divisors is an integer number (30726031035).

Almost surely, 2^61452062069 is an apocalyptic number.

It is an amenable number.

61452062069 is a deficient number, since it is larger than the sum of its proper divisors (1).

61452062069 is an equidigital number, since it uses as much as digits as its factorization.

61452062069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 61452062069 in words is "sixty-one billion, four hundred fifty-two million, sixty-two thousand, sixty-nine".