87397137744 has 120 divisors (see below), whose sum is σ = 264555353088. Its totient is φ = 24788252160.

The previous prime is 87397137703. The next prime is 87397137797. The reversal of 87397137744 is 44773179378.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186609 + ... + 457839.

Almost surely, 2^87397137744 is an apocalyptic number.

87397137744 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87397137744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132277676544).

87397137744 is an abundant number, since it is smaller than the sum of its proper divisors (177158215344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87397137744 is a wasteful number, since it uses less digits than its factorization.

87397137744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271393 (or 271380 counting only the distinct ones).

The product of its digits is 24893568, while the sum is 60.

The spelling of 87397137744 in words is "eighty-seven billion, three hundred ninety-seven million, one hundred thirty-seven thousand, seven hundred forty-four".