641254075415 has 8 divisors (see below), whose sum is σ = 769509205488. Its totient is φ = 513000383680.

The previous prime is 641254075409. The next prime is 641254075417. The reversal of 641254075415 is 514570452146.

641254075415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 641254075415 - 2⁸ = 641254075159 is a prime.

It is a super-2 number, since 2×641254075415² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641254075417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1440035 + ... + 1831995.

It is an arithmetic number, because the mean of its divisors is an integer number (96188650686).

Almost surely, 2^641254075415 is an apocalyptic number.

641254075415 is a deficient number, since it is larger than the sum of its proper divisors (128255130073).

641254075415 is a wasteful number, since it uses less digits than its factorization.

641254075415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719169.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 641254075415 in words is "six hundred forty-one billion, two hundred fifty-four million, seventy-five thousand, four hundred fifteen".