7741618644 has 24 divisors (see below), whose sum is σ = 19126352448. Its totient is φ = 2428743040.

The previous prime is 7741618607. The next prime is 7741618663. The reversal of 7741618644 is 4468161477.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7741618593 and 7741618602.

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, 18974352 + ... + 18974759.

It is an arithmetic number, because the mean of its divisors is an integer number (796931352).

Almost surely, 2^7741618644 is an apocalyptic number.

It is an amenable number.

7741618644 is an abundant number, since it is smaller than the sum of its proper divisors (11384733804).

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

7741618644 is a wasteful number, since it uses less digits than its factorization.

7741618644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37949135 (or 37949133 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 7741618644 is about 87986.4685278367. The cubic root of 7741618644 is about 1978.2321604513.

The spelling of 7741618644 in words is "seven billion, seven hundred forty-one million, six hundred eighteen thousand, six hundred forty-four".