4178061877 has 12 divisors (see below), whose sum is σ = 4616235820. Its totient is φ = 3778536960.

The previous prime is 4178061869. The next prime is 4178061917. The reversal of 4178061877 is 7781608714.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1941812356 + 2236249521 = 44066^2 + 47289^2 .

It is not a de Polignac number, because 4178061877 - 2³ = 4178061869 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4178061877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4178061817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66102 + ... + 112807.

Almost surely, 2^4178061877 is an apocalyptic number.

It is an amenable number.

4178061877 is a deficient number, since it is larger than the sum of its proper divisors (438173943).

4178061877 is a wasteful number, since it uses less digits than its factorization.

4178061877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179124 (or 179113 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 49.

The square root of 4178061877 is about 64637.9290896607. The cubic root of 4178061877 is about 1610.6145663769.

The spelling of 4178061877 in words is "four billion, one hundred seventy-eight million, sixty-one thousand, eight hundred seventy-seven".