7755640368 has 40 divisors (see below), whose sum is σ = 22897605888. Its totient is φ = 2215897152.

The previous prime is 7755640367. The next prime is 7755640369. The reversal of 7755640368 is 8630465577.

It is an interprime number because it is at equal distance from previous prime (7755640367) and next prime (7755640369).

It is a self number, because there is not a number n which added to its sum of digits gives 7755640368.

It is not an unprimeable number, because it can be changed into a prime (7755640367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11540796 + ... + 11541467.

Almost surely, 2^7755640368 is an apocalyptic number.

It is an amenable number.

7755640368 is an abundant number, since it is smaller than the sum of its proper divisors (15141965520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7755640368 is a wasteful number, since it uses less digits than its factorization.

7755640368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23082281 (or 23082275 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 51.

The square root of 7755640368 is about 88066.1136192577. The cubic root of 7755640368 is about 1979.4257736930.

The spelling of 7755640368 in words is "seven billion, seven hundred fifty-five million, six hundred forty thousand, three hundred sixty-eight".