64343763090 has 48 divisors (see below), whose sum is σ = 167715272088. Its totient is φ = 17115107328.

The previous prime is 64343763089. The next prime is 64343763161. The reversal of 64343763090 is 9036734346.

64343763090 is a `hidden beast` number, since 6 + 4 + 3 + 4 + 3 + 7 + 630 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 63287968041 + 1055795049 = 251571^2 + 32493^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 864687 + ... + 936146.

Almost surely, 2^64343763090 is an apocalyptic number.

64343763090 is an abundant number, since it is smaller than the sum of its proper divisors (103371508998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64343763090 is a wasteful number, since it uses less digits than its factorization.

64343763090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801243 (or 1801240 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 45.

The spelling of 64343763090 in words is "sixty-four billion, three hundred forty-three million, seven hundred sixty-three thousand, ninety".