65373763019 has 4 divisors (see below), whose sum is σ = 65384505480. Its totient is φ = 65363020560.

The previous prime is 65373763009. The next prime is 65373763027. The reversal of 65373763019 is 91036737356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65373763019 - 2⁴ = 65373763003 is a prime.

It is a super-2 number, since 2×65373763019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65373763009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5362097 + ... + 5374274.

It is an arithmetic number, because the mean of its divisors is an integer number (16346126370).

Almost surely, 2^65373763019 is an apocalyptic number.

65373763019 is a deficient number, since it is larger than the sum of its proper divisors (10742461).

65373763019 is a wasteful number, since it uses less digits than its factorization.

65373763019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742460.

The product of its (nonzero) digits is 2143260, while the sum is 50.

The spelling of 65373763019 in words is "sixty-five billion, three hundred seventy-three million, seven hundred sixty-three thousand, nineteen".