7655513983 has 4 divisors (see below), whose sum is σ = 8244399688. Its totient is φ = 7066628280.

The previous prime is 7655513977. The next prime is 7655513993. The reversal of 7655513983 is 3893155567.

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

It is a cyclic number.

It is not a de Polignac number, because 7655513983 - 2²¹ = 7653416831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7655513983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7655513963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294442833 + ... + 294442858.

It is an arithmetic number, because the mean of its divisors is an integer number (2061099922).

Almost surely, 2^7655513983 is an apocalyptic number.

7655513983 is a deficient number, since it is larger than the sum of its proper divisors (588885705).

7655513983 is a wasteful number, since it uses less digits than its factorization.

7655513983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588885704.

The product of its digits is 3402000, while the sum is 52.

The square root of 7655513983 is about 87495.7940874874. The cubic root of 7655513983 is about 1970.8706316030.

The spelling of 7655513983 in words is "seven billion, six hundred fifty-five million, five hundred thirteen thousand, nine hundred eighty-three".