98987654537 has 2 divisors, whose sum is σ = 98987654538. Its totient is φ = 98987654536.

The previous prime is 98987654503. The next prime is 98987654561. The reversal of 98987654537 is 73545678989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72294303376 + 26693351161 = 268876^2 + 163381^2 .

It is a cyclic number.

It is not a de Polignac number, because 98987654537 - 2²⁰ = 98986605961 is a prime.

It is not a weakly prime, because it can be changed into another prime (98987654567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49493827268 + 49493827269.

It is an arithmetic number, because the mean of its divisors is an integer number (49493827269).

Almost surely, 2^98987654537 is an apocalyptic number.

It is an amenable number.

98987654537 is a deficient number, since it is larger than the sum of its proper divisors (1).

98987654537 is an equidigital number, since it uses as much as digits as its factorization.

98987654537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 457228800, while the sum is 71.

The spelling of 98987654537 in words is "ninety-eight billion, nine hundred eighty-seven million, six hundred fifty-four thousand, five hundred thirty-seven".