424836505864 has 8 divisors (see below), whose sum is σ = 796568448510. Its totient is φ = 212418252928.

The previous prime is 424836505861. The next prime is 424836505901. The reversal of 424836505864 is 468505638424.

It can be written as a sum of positive squares in only one way, i.e., 375085203364 + 49751302500 = 612442^2 + 223050^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (424836505861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26552281609 + ... + 26552281624.

Almost surely, 2^424836505864 is an apocalyptic number.

It is an amenable number.

424836505864 is a deficient number, since it is larger than the sum of its proper divisors (371731942646).

424836505864 is a wasteful number, since it uses less digits than its factorization.

424836505864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53104563239 (or 53104563235 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 55.

The spelling of 424836505864 in words is "four hundred twenty-four billion, eight hundred thirty-six million, five hundred five thousand, eight hundred sixty-four".