635640054452434 has 8 divisors (see below), whose sum is σ = 953462100186288. Its totient is φ = 317819354390340.

The previous prime is 635640054452393. The next prime is 635640054452539. The reversal of 635640054452434 is 434254450046536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335236212 + ... + 337126975.

It is an arithmetic number, because the mean of its divisors is an integer number (119182762523286).

Almost surely, 2^{635640054452434} is an apocalyptic number.

635640054452434 is a deficient number, since it is larger than the sum of its proper divisors (317822045733854).

635640054452434 is a wasteful number, since it uses less digits than its factorization.

635640054452434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672835880.

The product of its (nonzero) digits is 82944000, while the sum is 55.

The spelling of 635640054452434 in words is "six hundred thirty-five trillion, six hundred forty billion, fifty-four million, four hundred fifty-two thousand, four hundred thirty-four".