87205051493 has 16 divisors (see below), whose sum is σ = 100888212096. Its totient is φ = 73828654080.

The previous prime is 87205051481. The next prime is 87205051501. The reversal of 87205051493 is 39415050278.

It is a cyclic number.

It is not a de Polignac number, because 87205051493 - 2⁶ = 87205051429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87205054493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2727005 + ... + 2758797.

It is an arithmetic number, because the mean of its divisors is an integer number (6305513256).

Almost surely, 2^87205051493 is an apocalyptic number.

87205051493 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

87205051493 is a deficient number, since it is larger than the sum of its proper divisors (13683160603).

87205051493 is a wasteful number, since it uses less digits than its factorization.

87205051493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36604.

The product of its (nonzero) digits is 302400, while the sum is 44.

The spelling of 87205051493 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, four hundred ninety-three".