4078763865 has 24 divisors (see below), whose sum is σ = 7712572608. Its totient is φ = 1977582240.

The previous prime is 4078763861. The next prime is 4078763873. The reversal of 4078763865 is 5683678704.

It is not a de Polignac number, because 4078763865 - 2² = 4078763861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4078763861) 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, 4119469 + ... + 4120458.

It is an arithmetic number, because the mean of its divisors is an integer number (321357192).

Almost surely, 2^4078763865 is an apocalyptic number.

4078763865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4078763865 is a deficient number, since it is larger than the sum of its proper divisors (3633808743).

4078763865 is a wasteful number, since it uses less digits than its factorization.

4078763865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8239949 (or 8239946 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The square root of 4078763865 is about 63865.2007356119. The cubic root of 4078763865 is about 1597.7525561893.

The spelling of 4078763865 in words is "four billion, seventy-eight million, seven hundred sixty-three thousand, eight hundred sixty-five".