64907190073 has 4 divisors (see below), whose sum is σ = 70807843728. Its totient is φ = 59006536420.

The previous prime is 64907190067. The next prime is 64907190107. The reversal of 64907190073 is 37009170946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64907190073 - 2⁵ = 64907190041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64907190373) 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, 2950326811 + ... + 2950326832.

It is an arithmetic number, because the mean of its divisors is an integer number (17701960932).

Almost surely, 2^64907190073 is an apocalyptic number.

It is an amenable number.

64907190073 is a deficient number, since it is larger than the sum of its proper divisors (5900653655).

64907190073 is a wasteful number, since it uses less digits than its factorization.

64907190073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900653654.

The product of its (nonzero) digits is 285768, while the sum is 46.

The spelling of 64907190073 in words is "sixty-four billion, nine hundred seven million, one hundred ninety thousand, seventy-three".