64304077893 has 32 divisors (see below), whose sum is σ = 94061082624. Its totient is φ = 38752560000.

The previous prime is 64304077837. The next prime is 64304077897. The reversal of 64304077893 is 39877040346.

It is a happy number.

It is not a de Polignac number, because 64304077893 - 2⁶ = 64304077829 is a prime.

It is a super-2 number, since 2×64304077893² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64304077897) 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 in 31 ways as a sum of consecutive naturals, for example, 9194628 + ... + 9201618.

It is an arithmetic number, because the mean of its divisors is an integer number (2939408832).

Almost surely, 2^64304077893 is an apocalyptic number.

It is an amenable number.

64304077893 is a deficient number, since it is larger than the sum of its proper divisors (29757004731).

64304077893 is a wasteful number, since it uses less digits than its factorization.

64304077893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8537.

The product of its (nonzero) digits is 3048192, while the sum is 51.

The spelling of 64304077893 in words is "sixty-four billion, three hundred four million, seventy-seven thousand, eight hundred ninety-three".