64540384473130 has 32 divisors (see below), whose sum is σ = 123161284707840. Its totient is φ = 24308148288960.

The previous prime is 64540384473113. The next prime is 64540384473133. The reversal of 64540384473130 is 3137448304546.

64540384473130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64540384473130² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64540384473133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2813431620 + ... + 2813454559.

It is an arithmetic number, because the mean of its divisors is an integer number (3848790147120).

Almost surely, 2^{64540384473130} is an apocalyptic number.

64540384473130 is a deficient number, since it is larger than the sum of its proper divisors (58620900234710).

64540384473130 is a wasteful number, since it uses less digits than its factorization.

64540384473130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626886254.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 64540384473130 in words is "sixty-four trillion, five hundred forty billion, three hundred eighty-four million, four hundred seventy-three thousand, one hundred thirty".