64937425771970 has 32 divisors (see below), whose sum is σ = 117590453543808. Its totient is φ = 25818737087488.

The previous prime is 64937425771969. The next prime is 64937425771973. The reversal of 64937425771970 is 7917752473946.

64937425771970 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 2×64937425771970² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64937425771894 and 64937425771903.

It is not an unprimeable number, because it can be changed into a prime (64937425771973) 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, 63963362 + ... + 64970658.

It is an arithmetic number, because the mean of its divisors is an integer number (3674701673244).

Almost surely, 2^{64937425771970} is an apocalyptic number.

64937425771970 is a deficient number, since it is larger than the sum of its proper divisors (52653027771838).

64937425771970 is a wasteful number, since it uses less digits than its factorization.

64937425771970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046074.

The product of its (nonzero) digits is 560105280, while the sum is 71.

The spelling of 64937425771970 in words is "sixty-four trillion, nine hundred thirty-seven billion, four hundred twenty-five million, seven hundred seventy-one thousand, nine hundred seventy".