641031226354 has 4 divisors (see below), whose sum is σ = 961546839534. Its totient is φ = 320515613176.

The previous prime is 641031226331. The next prime is 641031226373. The reversal of 641031226354 is 453622130146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 490452304329 + 150578922025 = 700323^2 + 388045^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160257806587 + ... + 160257806590.

Almost surely, 2^641031226354 is an apocalyptic number.

641031226354 is a deficient number, since it is larger than the sum of its proper divisors (320515613180).

641031226354 is a wasteful number, since it uses less digits than its factorization.

641031226354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320515613179.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 641031226354 in words is "six hundred forty-one billion, thirty-one million, two hundred twenty-six thousand, three hundred fifty-four".