7661883478 has 8 divisors (see below), whose sum is σ = 11493224568. Its totient is φ = 3830808624.

The previous prime is 7661883431. The next prime is 7661883479. The reversal of 7661883478 is 8743881667.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661883479) 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, 38650 + ... + 129682.

It is an arithmetic number, because the mean of its divisors is an integer number (1436653071).

Almost surely, 2^7661883478 is an apocalyptic number.

7661883478 is a deficient number, since it is larger than the sum of its proper divisors (3831341090).

7661883478 is a wasteful number, since it uses less digits than its factorization.

7661883478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133118.

The product of its digits is 10838016, while the sum is 58.

The square root of 7661883478 is about 87532.1853834348. The cubic root of 7661883478 is about 1971.4170774162.

The spelling of 7661883478 in words is "seven billion, six hundred sixty-one million, eight hundred eighty-three thousand, four hundred seventy-eight".