99387261504 has 168 divisors, whose sum is σ = 290090473920. Its totient is φ = 32524157952.

The previous prime is 99387261503. The next prime is 99387261553. The reversal of 99387261504 is 40516278399.

99387261504 is a `hidden beast` number, since 9 + 9 + 3 + 8 + 72 + 61 + 504 = 666.

It is not an unprimeable number, because it can be changed into a prime (99387261503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34424349 + ... + 34427235.

It is a 1-persistent number, because it is pandigital, but 2⋅99387261504 = 198774523008 is not.

Almost surely, 2^99387261504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99387261504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145045236960).

99387261504 is an abundant number, since it is smaller than the sum of its proper divisors (190703212416).

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

99387261504 is a wasteful number, since it uses less digits than its factorization.

99387261504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977 (or 3964 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 99387261504 in words is "ninety-nine billion, three hundred eighty-seven million, two hundred sixty-one thousand, five hundred four".