971177728773 has 8 divisors (see below), whose sum is σ = 1479889872448. Its totient is φ = 554958702144.

The previous prime is 971177728739. The next prime is 971177728817. The reversal of 971177728773 is 377827771179.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 971177728773 - 2¹⁴ = 971177712389 is a prime.

It is the 985484-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971177728273) by changing a digit.

It is a nontrivial repunit in base 985483.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23123279236 + ... + 23123279277.

It is an arithmetic number, because the mean of its divisors is an integer number (184986234056).

Almost surely, 2^971177728773 is an apocalyptic number.

It is an amenable number.

971177728773 is a deficient number, since it is larger than the sum of its proper divisors (508712143675).

971177728773 is a wasteful number, since it uses less digits than its factorization.

971177728773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46246558523.

The product of its digits is 50824368, while the sum is 66.

The spelling of 971177728773 in words is "nine hundred seventy-one billion, one hundred seventy-seven million, seven hundred twenty-eight thousand, seven hundred seventy-three".