98540072621 has 8 divisors (see below), whose sum is σ = 99119829600. Its totient is φ = 97960641040.

The previous prime is 98540072531. The next prime is 98540072639. The reversal of 98540072621 is 12627004589.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98540072621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98540074621) 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, 539990 + ... + 699048.

It is an arithmetic number, because the mean of its divisors is an integer number (12389978700).

Almost surely, 2^98540072621 is an apocalyptic number.

It is an amenable number.

98540072621 is a deficient number, since it is larger than the sum of its proper divisors (579756979).

98540072621 is a wasteful number, since it uses less digits than its factorization.

98540072621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162699.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 98540072621 in words is "ninety-eight billion, five hundred forty million, seventy-two thousand, six hundred twenty-one".