82477984390 has 16 divisors (see below), whose sum is σ = 149901736608. Its totient is φ = 32670890496.

The previous prime is 82477984387. The next prime is 82477984399. The reversal of 82477984390 is 9348977428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82477984399) 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, 40036827 + ... + 40038886.

It is an arithmetic number, because the mean of its divisors is an integer number (9368858538).

Almost surely, 2^82477984390 is an apocalyptic number.

82477984390 is a deficient number, since it is larger than the sum of its proper divisors (67423752218).

82477984390 is a wasteful number, since it uses less digits than its factorization.

82477984390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80075823.

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 82477984390 in words is "eighty-two billion, four hundred seventy-seven million, nine hundred eighty-four thousand, three hundred ninety".