6458871878477 has 4 divisors (see below), whose sum is σ = 6798812503680. Its totient is φ = 6118931253276.

The previous prime is 6458871878461. The next prime is 6458871878507. The reversal of 6458871878477 is 7748781788546.

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 6458871878477 - 2⁴ = 6458871878461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6458871878677) 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, 169970312573 + ... + 169970312610.

It is an arithmetic number, because the mean of its divisors is an integer number (1699703125920).

Almost surely, 2^{6458871878477} is an apocalyptic number.

It is an amenable number.

6458871878477 is a deficient number, since it is larger than the sum of its proper divisors (339940625203).

6458871878477 is a wasteful number, since it uses less digits than its factorization.

6458871878477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339940625202.

The product of its digits is 4720558080, while the sum is 80.

The spelling of 6458871878477 in words is "six trillion, four hundred fifty-eight billion, eight hundred seventy-one million, eight hundred seventy-eight thousand, four hundred seventy-seven".