87634855099801 has 9 divisors (see below), whose sum is σ = 90553277092053. Its totient is φ = 84807643449660.

The previous prime is 87634855099751. The next prime is 87634855099817. The reversal of 87634855099801 is 10899055843678.

The square root of 87634855099801 is 9361349.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 87634855099801 - 2³³ = 87626265165209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87634855099201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 290050830 + ... + 290352808.

Almost surely, 2^{87634855099801} is an apocalyptic number.

87634855099801 is the 9361349-th square number.

87634855099801 is the 4680675-th centered octagonal number.

It is an amenable number.

87634855099801 is a deficient number, since it is larger than the sum of its proper divisors (2918421992252).

87634855099801 is an frugal number, since it uses more digits than its factorization.

87634855099801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604020 (or 302010 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 73.

The spelling of 87634855099801 in words is "eighty-seven trillion, six hundred thirty-four billion, eight hundred fifty-five million, ninety-nine thousand, eight hundred one".