981616338771 has 8 divisors (see below), whose sum is σ = 1308827568384. Its totient is φ = 654408000840.

The previous prime is 981616338767. The next prime is 981616338821. The reversal of 981616338771 is 177833616189.

981616338771 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 981616338771 - 2² = 981616338767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (981616339771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260130 + ... + 1425096.

It is an arithmetic number, because the mean of its divisors is an integer number (163603446048).

Almost surely, 2^981616338771 is an apocalyptic number.

981616338771 is a deficient number, since it is larger than the sum of its proper divisors (327211229613).

981616338771 is a wasteful number, since it uses less digits than its factorization.

981616338771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445841.

The product of its digits is 9144576, while the sum is 60.

The spelling of 981616338771 in words is "nine hundred eighty-one billion, six hundred sixteen million, three hundred thirty-eight thousand, seven hundred seventy-one".