635987594345 has 16 divisors (see below), whose sum is σ = 781883746560. Its totient is φ = 496326998400.

The previous prime is 635987594293. The next prime is 635987594393. The reversal of 635987594345 is 543495789536.

It is not a de Polignac number, because 635987594345 - 2¹⁶ = 635987528809 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1792880 + ... + 2118110.

It is an arithmetic number, because the mean of its divisors is an integer number (48867734160).

Almost surely, 2^635987594345 is an apocalyptic number.

It is an amenable number.

635987594345 is a deficient number, since it is larger than the sum of its proper divisors (145896152215).

635987594345 is a wasteful number, since it uses less digits than its factorization.

635987594345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334816.

The product of its digits is 489888000, while the sum is 68.

The spelling of 635987594345 in words is "six hundred thirty-five billion, nine hundred eighty-seven million, five hundred ninety-four thousand, three hundred forty-five".