7829408678 has 48 divisors (see below), whose sum is σ = 14780309760. Its totient is φ = 3044796768.

The previous prime is 7829408663. The next prime is 7829408711. The reversal of 7829408678 is 8768049287.

It is a super-2 number, since 2×7829408678² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111551 + ... + 167637.

It is an arithmetic number, because the mean of its divisors is an integer number (307923120).

Almost surely, 2^7829408678 is an apocalyptic number.

7829408678 is a deficient number, since it is larger than the sum of its proper divisors (6950901082).

7829408678 is a wasteful number, since it uses less digits than its factorization.

7829408678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56181 (or 56168 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 59.

The square root of 7829408678 is about 88483.9458772042. The cubic root of 7829408678 is about 1985.6817956275.

The spelling of 7829408678 in words is "seven billion, eight hundred twenty-nine million, four hundred eight thousand, six hundred seventy-eight".