98172387957 has 8 divisors (see below), whose sum is σ = 149596019776. Its totient is φ = 56098507392.

The previous prime is 98172387883. The next prime is 98172387977. The reversal of 98172387957 is 75978327189.

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

It is not a de Polignac number, because 98172387957 - 2⁸ = 98172387701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98172387977) 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, 2337437788 + ... + 2337437829.

It is an arithmetic number, because the mean of its divisors is an integer number (18699502472).

Almost surely, 2^98172387957 is an apocalyptic number.

It is an amenable number.

98172387957 is a deficient number, since it is larger than the sum of its proper divisors (51423631819).

98172387957 is a wasteful number, since it uses less digits than its factorization.

98172387957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4674875627.

The product of its digits is 53343360, while the sum is 66.

The spelling of 98172387957 in words is "ninety-eight billion, one hundred seventy-two million, three hundred eighty-seven thousand, nine hundred fifty-seven".