87436390550 has 24 divisors (see below), whose sum is σ = 168239678400. Its totient is φ = 33768536480.

The previous prime is 87436390543. The next prime is 87436390583. The reversal of 87436390550 is 5509363478.

It is a hoax number, since the sum of its digits (50) 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 (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30149030 + ... + 30151929.

It is an arithmetic number, because the mean of its divisors is an integer number (7009986600).

Almost surely, 2^87436390550 is an apocalyptic number.

87436390550 is a deficient number, since it is larger than the sum of its proper divisors (80803287850).

87436390550 is a wasteful number, since it uses less digits than its factorization.

87436390550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60301000 (or 60300995 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 87436390550 in words is "eighty-seven billion, four hundred thirty-six million, three hundred ninety thousand, five hundred fifty".