98611200421 has 2 divisors, whose sum is σ = 98611200422. Its totient is φ = 98611200420.

The previous prime is 98611200407. The next prime is 98611200427. The reversal of 98611200421 is 12400211689.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77276216196 + 21334984225 = 277986^2 + 146065^2 .

It is a cyclic number.

It is not a de Polignac number, because 98611200421 - 2¹⁵ = 98611167653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98611200427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49305600210 + 49305600211.

It is an arithmetic number, because the mean of its divisors is an integer number (49305600211).

Almost surely, 2^98611200421 is an apocalyptic number.

It is an amenable number.

98611200421 is a deficient number, since it is larger than the sum of its proper divisors (1).

98611200421 is an equidigital number, since it uses as much as digits as its factorization.

98611200421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 98611200421 in words is "ninety-eight billion, six hundred eleven million, two hundred thousand, four hundred twenty-one".