641214032077 has 4 divisors (see below), whose sum is σ = 641288401600. Its totient is φ = 641139662556.

The previous prime is 641214032059. The next prime is 641214032087. The reversal of 641214032077 is 770230412146.

641214032077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 641214032077 - 2³¹ = 639066548429 is a prime.

It is a super-2 number, since 2×641214032077² (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 (641214032027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37171827 + ... + 37189072.

It is an arithmetic number, because the mean of its divisors is an integer number (160322100400).

Almost surely, 2^641214032077 is an apocalyptic number.

It is an amenable number.

641214032077 is a deficient number, since it is larger than the sum of its proper divisors (74369523).

641214032077 is an equidigital number, since it uses as much as digits as its factorization.

641214032077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74369522.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 641214032077 in words is "six hundred forty-one billion, two hundred fourteen million, thirty-two thousand, seventy-seven".