6420130377 has 4 divisors (see below), whose sum is σ = 8560173840. Its totient is φ = 4280086916.

The previous prime is 6420130363. The next prime is 6420130391. The reversal of 6420130377 is 7730310246.

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 an interprime number because it is at equal distance from previous prime (6420130363) and next prime (6420130391).

It is a cyclic number.

It is not a de Polignac number, because 6420130377 - 2²³ = 6411741769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6420130307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070021727 + ... + 1070021732.

It is an arithmetic number, because the mean of its divisors is an integer number (2140043460).

Almost surely, 2^6420130377 is an apocalyptic number.

It is an amenable number.

6420130377 is a deficient number, since it is larger than the sum of its proper divisors (2140043463).

6420130377 is a wasteful number, since it uses less digits than its factorization.

6420130377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140043462.

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 6420130377 is about 80125.7160779234. The cubic root of 6420130377 is about 1858.5800988474.

The spelling of 6420130377 in words is "six billion, four hundred twenty million, one hundred thirty thousand, three hundred seventy-seven".