977881419539 has 2 divisors, whose sum is σ = 977881419540. Its totient is φ = 977881419538.

The previous prime is 977881419439. The next prime is 977881419577. The reversal of 977881419539 is 935914188779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 977881419539 - 2¹⁶ = 977881354003 is a prime.

It is not a weakly prime, because it can be changed into another prime (977881419589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488940709769 + 488940709770.

It is an arithmetic number, because the mean of its divisors is an integer number (488940709770).

Almost surely, 2^977881419539 is an apocalyptic number.

977881419539 is a deficient number, since it is larger than the sum of its proper divisors (1).

977881419539 is an equidigital number, since it uses as much as digits as its factorization.

977881419539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 137168640, while the sum is 71.

The spelling of 977881419539 in words is "nine hundred seventy-seven billion, eight hundred eighty-one million, four hundred nineteen thousand, five hundred thirty-nine".