11899954087 has 8 divisors (see below), whose sum is σ = 14315734400. Its totient is φ = 9663120504.

The previous prime is 11899954067. The next prime is 11899954133. The reversal of 11899954087 is 78045999811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11899954087 - 2¹¹ = 11899952039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11899954057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44736537 + ... + 44736802.

It is an arithmetic number, because the mean of its divisors is an integer number (1789466800).

Almost surely, 2^11899954087 is an apocalyptic number.

11899954087 is a deficient number, since it is larger than the sum of its proper divisors (2415780313).

11899954087 is an equidigital number, since it uses as much as digits as its factorization.

11899954087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89473365.

The product of its (nonzero) digits is 6531840, while the sum is 61.

The spelling of 11899954087 in words is "eleven billion, eight hundred ninety-nine million, nine hundred fifty-four thousand, eighty-seven".