6418778102 has 32 divisors (see below), whose sum is σ = 10624932864. Its totient is φ = 2883988800.

The previous prime is 6418778101. The next prime is 6418778143. The reversal of 6418778102 is 2018778146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6418778101) 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, 1395827 + ... + 1400417.

It is an arithmetic number, because the mean of its divisors is an integer number (332029152).

Almost surely, 2^6418778102 is an apocalyptic number.

6418778102 is a deficient number, since it is larger than the sum of its proper divisors (4206154762).

6418778102 is a wasteful number, since it uses less digits than its factorization.

6418778102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 6418778102 is about 80117.2771754008. The cubic root of 6418778102 is about 1858.4495984922.

Adding to 6418778102 its sum of digits (44), we get a palindrome (6418778146).

The spelling of 6418778102 in words is "six billion, four hundred eighteen million, seven hundred seventy-eight thousand, one hundred two".