64273424340 has 48 divisors (see below), whose sum is σ = 180011240640. Its totient is φ = 17135232000.

The previous prime is 64273424269. The next prime is 64273424389. The reversal of 64273424340 is 4342437246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106191 + ... + 373929.

It is an arithmetic number, because the mean of its divisors is an integer number (3750234180).

Almost surely, 2^64273424340 is an apocalyptic number.

64273424340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64273424340 is an abundant number, since it is smaller than the sum of its proper divisors (115737816300).

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

64273424340 is a wasteful number, since it uses less digits than its factorization.

64273424340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271752 (or 271750 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 39.

The spelling of 64273424340 in words is "sixty-four billion, two hundred seventy-three million, four hundred twenty-four thousand, three hundred forty".