64136528541357 has 16 divisors (see below), whose sum is σ = 90583684035840. Its totient is φ = 40225640297472.

The previous prime is 64136528541341. The next prime is 64136528541413. The reversal of 64136528541357 is 75314582563146.

It is not a de Polignac number, because 64136528541357 - 2⁴ = 64136528541341 is a prime.

It is a super-2 number, since 2×64136528541357² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64136528541357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64136528541157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263743132 + ... + 263986197.

It is an arithmetic number, because the mean of its divisors is an integer number (5661480252240).

Almost surely, 2^{64136528541357} is an apocalyptic number.

It is an amenable number.

64136528541357 is a deficient number, since it is larger than the sum of its proper divisors (26447155494483).

64136528541357 is a wasteful number, since it uses less digits than its factorization.

64136528541357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527731732.

The product of its digits is 72576000, while the sum is 60.

The spelling of 64136528541357 in words is "sixty-four trillion, one hundred thirty-six billion, five hundred twenty-eight million, five hundred forty-one thousand, three hundred fifty-seven".