8778361431 has 16 divisors (see below), whose sum is σ = 13443776000. Its totient is φ = 4990997088.

The previous prime is 8778361367. The next prime is 8778361439. The reversal of 8778361431 is 1341638778.

8778361431 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8778361431 - 2⁶ = 8778361367 is a prime.

It is a super-2 number, since 2×8778361431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8778361439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046116 + ... + 1054473.

It is an arithmetic number, because the mean of its divisors is an integer number (840236000).

Almost surely, 2^8778361431 is an apocalyptic number.

8778361431 is a deficient number, since it is larger than the sum of its proper divisors (4665414569).

8778361431 is a wasteful number, since it uses less digits than its factorization.

8778361431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100798.

The product of its digits is 677376, while the sum is 48.

The square root of 8778361431 is about 93692.9102493887. The cubic root of 8778361431 is about 2062.8666401574.

The spelling of 8778361431 in words is "eight billion, seven hundred seventy-eight million, three hundred sixty-one thousand, four hundred thirty-one".