7639228078 has 8 divisors (see below), whose sum is σ = 11653059960. Its totient is φ = 3754874760.

The previous prime is 7639228061. The next prime is 7639228097. The reversal of 7639228078 is 8708229367.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32369493 + ... + 32369728.

It is an arithmetic number, because the mean of its divisors is an integer number (1456632495).

Almost surely, 2^7639228078 is an apocalyptic number.

7639228078 is a deficient number, since it is larger than the sum of its proper divisors (4013831882).

7639228078 is a wasteful number, since it uses less digits than its factorization.

7639228078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64739282.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The square root of 7639228078 is about 87402.6777507417. The cubic root of 7639228078 is about 1969.4720666984.

The spelling of 7639228078 in words is "seven billion, six hundred thirty-nine million, two hundred twenty-eight thousand, seventy-eight".