981477766328 has 16 divisors (see below), whose sum is σ = 1870439186760. Its totient is φ = 482693983200.

The previous prime is 981477766309. The next prime is 981477766391. The reversal of 981477766328 is 823667774189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005611978 + ... + 1005612953.

Almost surely, 2^981477766328 is an apocalyptic number.

It is an amenable number.

981477766328 is a deficient number, since it is larger than the sum of its proper divisors (888961420432).

981477766328 is a wasteful number, since it uses less digits than its factorization.

981477766328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011224998 (or 2011224994 counting only the distinct ones).

The product of its digits is 170698752, while the sum is 68.

The spelling of 981477766328 in words is "nine hundred eighty-one billion, four hundred seventy-seven million, seven hundred sixty-six thousand, three hundred twenty-eight".