641470051 has 8 divisors (see below), whose sum is σ = 657569808. Its totient is φ = 625392000.

The previous prime is 641470009. The next prime is 641470079. The reversal of 641470051 is 150074146.

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

It is a cyclic number.

It is not a de Polignac number, because 641470051 - 2⁷ = 641469923 is a prime.

It is a super-2 number, since 2×641470051² = 822967652659885202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641470351) 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, 66016 + ... + 75106.

It is an arithmetic number, because the mean of its divisors is an integer number (82196226).

Almost surely, 2^641470051 is an apocalyptic number.

641470051 is a deficient number, since it is larger than the sum of its proper divisors (16099757).

641470051 is a wasteful number, since it uses less digits than its factorization.

641470051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10853.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 641470051 is about 25327.2590502802. The cubic root of 641470051 is about 862.4331899800.

The spelling of 641470051 in words is "six hundred forty-one million, four hundred seventy thousand, fifty-one".