4287778431 has 16 divisors (see below), whose sum is σ = 6107760000. Its totient is φ = 2667649248.

The previous prime is 4287778379. The next prime is 4287778447. The reversal of 4287778431 is 1348777824.

It is not a de Polignac number, because 4287778431 - 2¹⁰ = 4287777407 is a prime.

It is a super-2 number, since 2×4287778431² = 36770087746697643522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287738431) 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, 557556 + ... + 565193.

It is an arithmetic number, because the mean of its divisors is an integer number (381735000).

Almost surely, 2^4287778431 is an apocalyptic number.

4287778431 is a deficient number, since it is larger than the sum of its proper divisors (1819981569).

4287778431 is a wasteful number, since it uses less digits than its factorization.

4287778431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122838.

The product of its digits is 2107392, while the sum is 51.

The square root of 4287778431 is about 65481.1303430232. The cubic root of 4287778431 is about 1624.5912573222.

The spelling of 4287778431 in words is "four billion, two hundred eighty-seven million, seven hundred seventy-eight thousand, four hundred thirty-one".