99087201477 has 128 divisors (see below), whose sum is σ = 165577789440. Its totient is φ = 58060800000.

The previous prime is 99087201431. The next prime is 99087201491. The reversal of 99087201477 is 77410278099.

99087201477 is a `hidden beast` number, since 9 + 90 + 87 + 2 + 0 + 1 + 477 = 666.

It is not a de Polignac number, because 99087201477 - 2⁸ = 99087201221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99087201077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 394769602 + ... + 394769852.

It is an arithmetic number, because the mean of its divisors is an integer number (1293576480).

Almost surely, 2^99087201477 is an apocalyptic number.

99087201477 is a gapful number since it is divisible by the number (97) formed by its first and last digit.

It is an amenable number.

99087201477 is a deficient number, since it is larger than the sum of its proper divisors (66490587963).

99087201477 is a wasteful number, since it uses less digits than its factorization.

99087201477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 99087201477 in words is "ninety-nine billion, eighty-seven million, two hundred one thousand, four hundred seventy-seven".