30801780087 has 16 divisors (see below), whose sum is σ = 44888323200. Its totient is φ = 18672030432.

The previous prime is 30801780083. The next prime is 30801780101. The reversal of 30801780087 is 78008710803.

It is not a de Polignac number, because 30801780087 - 2² = 30801780083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30801780083) 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, 5891337 + ... + 5896562.

It is an arithmetic number, because the mean of its divisors is an integer number (2805520200).

Almost surely, 2^30801780087 is an apocalyptic number.

30801780087 is a deficient number, since it is larger than the sum of its proper divisors (14086543113).

30801780087 is a wasteful number, since it uses less digits than its factorization.

30801780087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11787982.

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 30801780087 in words is "thirty billion, eight hundred one million, seven hundred eighty thousand, eighty-seven".