7738422655 has 8 divisors (see below), whose sum is σ = 9289258992. Its totient is φ = 6188636928.

The previous prime is 7738422617. The next prime is 7738422667. The reversal of 7738422655 is 5562248377.

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

It is a cyclic number.

It is not a de Polignac number, because 7738422655 - 2¹⁹ = 7737898367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7738422599 and 7738422608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246354 + ... + 275983.

It is an arithmetic number, because the mean of its divisors is an integer number (1161157374).

Almost surely, 2^7738422655 is an apocalyptic number.

7738422655 is a deficient number, since it is larger than the sum of its proper divisors (1550836337).

7738422655 is a wasteful number, since it uses less digits than its factorization.

7738422655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525305.

The product of its digits is 2822400, while the sum is 49.

The square root of 7738422655 is about 87968.3048319109. The cubic root of 7738422655 is about 1977.9598970421.

The spelling of 7738422655 in words is "seven billion, seven hundred thirty-eight million, four hundred twenty-two thousand, six hundred fifty-five".