98001388642 has 4 divisors (see below), whose sum is σ = 147002082966. Its totient is φ = 49000694320.

The previous prime is 98001388609. The next prime is 98001388687. The reversal of 98001388642 is 24688310089.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66771076801 + 31230311841 = 258401^2 + 176721^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24500347159 + ... + 24500347162.

Almost surely, 2^98001388642 is an apocalyptic number.

98001388642 is a deficient number, since it is larger than the sum of its proper divisors (49000694324).

98001388642 is a wasteful number, since it uses less digits than its factorization.

98001388642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49000694323.

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 98001388642 in words is "ninety-eight billion, one million, three hundred eighty-eight thousand, six hundred forty-two".