64141520639 has 8 divisors (see below), whose sum is σ = 73310373408. Its totient is φ = 54974112480.

The previous prime is 64141520609. The next prime is 64141520669. The reversal of 64141520639 is 93602514146.

It is an interprime number because it is at equal distance from previous prime (64141520609) and next prime (64141520669).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64141520639 - 2⁸ = 64141520383 is a prime.

It is a super-2 number, since 2×64141520639² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64141520596 and 64141520605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64141520609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264272 + ... + 445109.

It is an arithmetic number, because the mean of its divisors is an integer number (9163796676).

Almost surely, 2^64141520639 is an apocalyptic number.

64141520639 is a deficient number, since it is larger than the sum of its proper divisors (9168852769).

64141520639 is a wasteful number, since it uses less digits than its factorization.

64141520639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722305.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 64141520639 in words is "sixty-four billion, one hundred forty-one million, five hundred twenty thousand, six hundred thirty-nine".