87241739938 has 48 divisors (see below), whose sum is σ = 135643248000. Its totient is φ = 42075184320.

The previous prime is 87241739927. The next prime is 87241739947. The reversal of 87241739938 is 83993714278.

It is a super-2 number, since 2×87241739938² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105236908 + ... + 105237736.

It is an arithmetic number, because the mean of its divisors is an integer number (2825901000).

Almost surely, 2^87241739938 is an apocalyptic number.

87241739938 is a deficient number, since it is larger than the sum of its proper divisors (48401508062).

87241739938 is a wasteful number, since it uses less digits than its factorization.

87241739938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1150 counting only the distinct ones).

The product of its digits is 18289152, while the sum is 61.

The spelling of 87241739938 in words is "eighty-seven billion, two hundred forty-one million, seven hundred thirty-nine thousand, nine hundred thirty-eight".