978047740636 has 6 divisors (see below), whose sum is σ = 1711583546120. Its totient is φ = 489023870316.

The previous prime is 978047740541. The next prime is 978047740667. The reversal of 978047740636 is 636047740879.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122255967576 + ... + 122255967583.

Almost surely, 2^978047740636 is an apocalyptic number.

It is an amenable number.

978047740636 is a deficient number, since it is larger than the sum of its proper divisors (733535805484).

978047740636 is a wasteful number, since it uses less digits than its factorization.

978047740636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244511935163 (or 244511935161 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 61.

The spelling of 978047740636 in words is "nine hundred seventy-eight billion, forty-seven million, seven hundred forty thousand, six hundred thirty-six".