977124424421779 has 4 divisors (see below), whose sum is σ = 978910757922184. Its totient is φ = 975338090921376.

The previous prime is 977124424421689. The next prime is 977124424421857.

977124424421779 is nontrivially palindromic in base 10.

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 977124424421779 - 2⁹ = 977124424421267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977124424427779) 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, 893166749382 + ... + 893166750475.

It is an arithmetic number, because the mean of its divisors is an integer number (244727689480546).

Almost surely, 2^{977124424421779} is an apocalyptic number.

977124424421779 is a deficient number, since it is larger than the sum of its proper divisors (1786333500405).

977124424421779 is a wasteful number, since it uses less digits than its factorization.

977124424421779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786333500404.

The product of its digits is 398297088, while the sum is 70.

The spelling of 977124424421779 in words is "nine hundred seventy-seven trillion, one hundred twenty-four billion, four hundred twenty-four million, four hundred twenty-one thousand, seven hundred seventy-nine".