8149400787 has 32 divisors (see below), whose sum is σ = 12130663680. Its totient is φ = 4824443520.

The previous prime is 8149400773. The next prime is 8149400797. The reversal of 8149400787 is 7870049418.

It is not a de Polignac number, because 8149400787 - 2¹⁸ = 8149138643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8149400747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390348 + ... + 410694.

It is an arithmetic number, because the mean of its divisors is an integer number (379083240).

Almost surely, 2^8149400787 is an apocalyptic number.

8149400787 is a deficient number, since it is larger than the sum of its proper divisors (3981262893).

8149400787 is a wasteful number, since it uses less digits than its factorization.

8149400787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20643.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 8149400787 is about 90274.0316314720. The cubic root of 8149400787 is about 2012.3733577292.

The spelling of 8149400787 in words is "eight billion, one hundred forty-nine million, four hundred thousand, seven hundred eighty-seven".