65142213426 has 12 divisors (see below), whose sum is σ = 141141462462. Its totient is φ = 21714071136.

The previous prime is 65142213397. The next prime is 65142213439. The reversal of 65142213426 is 62431224156.

65142213426 is a `hidden beast` number, since 6 + 5 + 1 + 4 + 221 + 3 + 426 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52100345025 + 13041868401 = 228255^2 + 114201^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1809505911 + ... + 1809505946.

Almost surely, 2^65142213426 is an apocalyptic number.

65142213426 is an abundant number, since it is smaller than the sum of its proper divisors (75999249036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65142213426 is a wasteful number, since it uses less digits than its factorization.

65142213426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3619011865 (or 3619011862 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 65142213426 in words is "sixty-five billion, one hundred forty-two million, two hundred thirteen thousand, four hundred twenty-six".