87205051542 has 16 divisors (see below), whose sum is σ = 199325832192. Its totient is φ = 24915729000.

The previous prime is 87205051537. The next prime is 87205051559. The reversal of 87205051542 is 24515050278.

It is a super-3 number, since 3×87205051542³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87205051542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038155334 + ... + 1038155417.

It is an arithmetic number, because the mean of its divisors is an integer number (12457864512).

Almost surely, 2^87205051542 is an apocalyptic number.

87205051542 is an abundant number, since it is smaller than the sum of its proper divisors (112120780650).

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

87205051542 is a wasteful number, since it uses less digits than its factorization.

87205051542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076310763.

The product of its (nonzero) digits is 112000, while the sum is 39.

The spelling of 87205051542 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, five hundred forty-two".