4861088978 has 4 divisors (see below), whose sum is σ = 7291633470. Its totient is φ = 2430544488.

The previous prime is 4861088977. The next prime is 4861088993. The reversal of 4861088978 is 8798801684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4855720489 + 5368489 = 69683^2 + 2317^2 .

It is not an unprimeable number, because it can be changed into a prime (4861088977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215272243 + ... + 1215272246.

Almost surely, 2^4861088978 is an apocalyptic number.

4861088978 is a deficient number, since it is larger than the sum of its proper divisors (2430544492).

4861088978 is a wasteful number, since it uses less digits than its factorization.

4861088978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430544491.

The product of its (nonzero) digits is 6193152, while the sum is 59.

The square root of 4861088978 is about 69721.5101528933. The cubic root of 4861088978 is about 1693.9913570479.

The spelling of 4861088978 in words is "four billion, eight hundred sixty-one million, eighty-eight thousand, nine hundred seventy-eight".