641352714025 has 9 divisors (see below), whose sum is σ = 795282330661. Its totient is φ = 513078967840.

The previous prime is 641352713987. The next prime is 641352714031. The reversal of 641352714025 is 520417253146.

The square root of 641352714025 is 800845.

It is a perfect power (a square), and thus also a powerful number.

641352714025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 191750279449 + 449602434576 = 437893^2 + 670524^2 .

It is not a de Polignac number, because 641352714025 - 2²¹ = 641350616873 is a prime.

It is a super-2 number, since 2×641352714025² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3924141 + ... + 4084309.

Almost surely, 2^641352714025 is an apocalyptic number.

641352714025 is the 800845-th square number.

641352714025 is the 400423-rd centered octagonal number.

It is an amenable number.

641352714025 is a deficient number, since it is larger than the sum of its proper divisors (153929616636).

641352714025 is an frugal number, since it uses more digits than its factorization.

641352714025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320348 (or 160174 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 641352714025 in words is "six hundred forty-one billion, three hundred fifty-two million, seven hundred fourteen thousand, twenty-five".