64915069143 has 16 divisors (see below), whose sum is σ = 93012641280. Its totient is φ = 40123095936.

The previous prime is 64915069133. The next prime is 64915069147. The reversal of 64915069143 is 34196051946.

It is a happy number.

It is not a de Polignac number, because 64915069143 - 2⁴ = 64915069127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64915069092 and 64915069101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64915069147) 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, 9495423 + ... + 9502256.

It is an arithmetic number, because the mean of its divisors is an integer number (5813290080).

Almost surely, 2^64915069143 is an apocalyptic number.

64915069143 is a deficient number, since it is larger than the sum of its proper divisors (28097572137).

64915069143 is a wasteful number, since it uses less digits than its factorization.

64915069143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18997766.

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 64915069143 in words is "sixty-four billion, nine hundred fifteen million, sixty-nine thousand, one hundred forty-three".