87371783835540 has 192 divisors, whose sum is σ = 259334078976000. Its totient is φ = 21939887226880.

The previous prime is 87371783835503. The next prime is 87371783835599. The reversal of 87371783835540 is 4553838717378.

It is a super-2 number, since 2×87371783835540² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 220171021 + ... + 220567499.

It is an arithmetic number, because the mean of its divisors is an integer number (1350698328000).

Almost surely, 2^{87371783835540} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87371783835540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129667039488000).

87371783835540 is an abundant number, since it is smaller than the sum of its proper divisors (171962295140460).

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

87371783835540 is a wasteful number, since it uses less digits than its factorization.

87371783835540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399650 (or 399648 counting only the distinct ones).

The product of its (nonzero) digits is 474163200, while the sum is 69.

The spelling of 87371783835540 in words is "eighty-seven trillion, three hundred seventy-one billion, seven hundred eighty-three million, eight hundred thirty-five thousand, five hundred forty".