98687757478001 has 2 divisors, whose sum is σ = 98687757478002. Its totient is φ = 98687757478000.

The previous prime is 98687757477997. The next prime is 98687757478027. The reversal of 98687757478001 is 10087475778689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51983162704225 + 46704594773776 = 7209935^2 + 6834076^2 .

It is a cyclic number.

It is not a de Polignac number, because 98687757478001 - 2² = 98687757477997 is a prime.

It is not a weakly prime, because it can be changed into another prime (98687757478201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49343878739000 + 49343878739001.

It is an arithmetic number, because the mean of its divisors is an integer number (49343878739001).

Almost surely, 2^{98687757478001} is an apocalyptic number.

It is an amenable number.

98687757478001 is a deficient number, since it is larger than the sum of its proper divisors (1).

98687757478001 is an equidigital number, since it uses as much as digits as its factorization.

98687757478001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1327656960, while the sum is 77.

The spelling of 98687757478001 in words is "ninety-eight trillion, six hundred eighty-seven billion, seven hundred fifty-seven million, four hundred seventy-eight thousand, one".