64536263546 has 16 divisors (see below), whose sum is σ = 101090899584. Its totient is φ = 30841453104.

The previous prime is 64536263537. The next prime is 64536263581.

64536263546 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64536263494 and 64536263503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478421 + ... + 598296.

It is an arithmetic number, because the mean of its divisors is an integer number (6318181224).

Almost surely, 2^64536263546 is an apocalyptic number.

64536263546 is a deficient number, since it is larger than the sum of its proper divisors (36554636038).

64536263546 is a wasteful number, since it uses less digits than its factorization.

64536263546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078045.

The product of its digits is 9331200, while the sum is 50.

The spelling of 64536263546 in words is "sixty-four billion, five hundred thirty-six million, two hundred sixty-three thousand, five hundred forty-six".