988785000061 has 8 divisors (see below), whose sum is σ = 1047180684600. Its totient is φ = 930415077888.

The previous prime is 988785000053. The next prime is 988785000097. The reversal of 988785000061 is 160000587889.

988785000061 = 703130² + 703131².

It can be written as a sum of positive squares in 4 ways, for example, as 121780060900 + 867004939161 = 348970^2 + 931131^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 988785000061 - 2³ = 988785000053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988784999972 and 988785000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988785000361) 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, 6361536 + ... + 6515113.

It is an arithmetic number, because the mean of its divisors is an integer number (130897585575).

Almost surely, 2^988785000061 is an apocalyptic number.

988785000061 is the 703131-st centered square number.

It is an amenable number.

988785000061 is a deficient number, since it is larger than the sum of its proper divisors (58395684539).

988785000061 is a wasteful number, since it uses less digits than its factorization.

988785000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12881183.

The product of its (nonzero) digits is 967680, while the sum is 52.

The spelling of 988785000061 in words is "nine hundred eighty-eight billion, seven hundred eighty-five million, sixty-one", and thus it is an aban number.