6977844019 has 4 divisors (see below), whose sum is σ = 7218459360. Its totient is φ = 6737228680.

The previous prime is 6977844007. The next prime is 6977844043. The reversal of 6977844019 is 9104487796.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6977844019 - 2¹⁹ = 6977319731 is a prime.

It is a super-2 number, since 2×6977844019² = 97380614306988144722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6977844919) 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, 120307627 + ... + 120307684.

It is an arithmetic number, because the mean of its divisors is an integer number (1804614840).

Almost surely, 2^6977844019 is an apocalyptic number.

6977844019 is a deficient number, since it is larger than the sum of its proper divisors (240615341).

6977844019 is a wasteful number, since it uses less digits than its factorization.

6977844019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240615340.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 6977844019 is about 83533.4904035501. The cubic root of 6977844019 is about 1910.9108179324.

The spelling of 6977844019 in words is "six billion, nine hundred seventy-seven million, eight hundred forty-four thousand, nineteen".