61242914669 has 2 divisors, whose sum is σ = 61242914670. Its totient is φ = 61242914668.

The previous prime is 61242914657. The next prime is 61242914671. The reversal of 61242914669 is 96641924216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59944177225 + 1298737444 = 244835^2 + 36038^2 .

It is a cyclic number.

It is not a de Polignac number, because 61242914669 - 2²⁸ = 60974479213 is a prime.

It is a super-2 number, since 2×61242914669² (a number of 22 digits) contains 22 as substring.

Together with 61242914671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61242914609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30621457334 + 30621457335.

It is an arithmetic number, because the mean of its divisors is an integer number (30621457335).

Almost surely, 2^61242914669 is an apocalyptic number.

It is an amenable number.

61242914669 is a deficient number, since it is larger than the sum of its proper divisors (1).

61242914669 is an equidigital number, since it uses as much as digits as its factorization.

61242914669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The spelling of 61242914669 in words is "sixty-one billion, two hundred forty-two million, nine hundred fourteen thousand, six hundred sixty-nine".