641521031414 has 16 divisors (see below), whose sum is σ = 963222998976. Its totient is φ = 320446819200.

The previous prime is 641521031363. The next prime is 641521031443. The reversal of 641521031414 is 414130125146.

641521031414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 11686259 + ... + 11741025.

It is an arithmetic number, because the mean of its divisors is an integer number (60201437436).

Almost surely, 2^641521031414 is an apocalyptic number.

641521031414 is a deficient number, since it is larger than the sum of its proper divisors (321701967562).

641521031414 is a wasteful number, since it uses less digits than its factorization.

641521031414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60391.

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 641521031414 in words is "six hundred forty-one billion, five hundred twenty-one million, thirty-one thousand, four hundred fourteen".