64242250101445 has 24 divisors (see below), whose sum is σ = 83640914317800. Its totient is φ = 47347227323136.

The previous prime is 64242250101437. The next prime is 64242250101499. The reversal of 64242250101445 is 54410105224246.

It can be written as a sum of positive squares in 12 ways, for example, as 30305124090081 + 33937126011364 = 5505009^2 + 5825558^2 .

It is not a de Polignac number, because 64242250101445 - 2³ = 64242250101437 is a prime.

It is a super-2 number, since 2×64242250101445² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64242250101398 and 64242250101407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74251950 + ... + 75112159.

It is an arithmetic number, because the mean of its divisors is an integer number (3485038096575).

Almost surely, 2^{64242250101445} is an apocalyptic number.

64242250101445 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64242250101445 is a deficient number, since it is larger than the sum of its proper divisors (19398664216355).

64242250101445 is a wasteful number, since it uses less digits than its factorization.

64242250101445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149364649 (or 149364636 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 40.

The spelling of 64242250101445 in words is "sixty-four trillion, two hundred forty-two billion, two hundred fifty million, one hundred one thousand, four hundred forty-five".