7669819542 has 32 divisors (see below), whose sum is σ = 19124745984. Its totient is φ = 1992160800.

The previous prime is 7669819537. The next prime is 7669819543. The reversal of 7669819542 is 2459189667.

It is a super-2 number, since 2×7669819542² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7669819543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8300209 + ... + 8301132.

It is an arithmetic number, because the mean of its divisors is an integer number (597648312).

Almost surely, 2^7669819542 is an apocalyptic number.

7669819542 is an abundant number, since it is smaller than the sum of its proper divisors (11454926442).

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

7669819542 is a wasteful number, since it uses less digits than its factorization.

7669819542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16601364.

The product of its digits is 6531840, while the sum is 57.

The square root of 7669819542 is about 87577.5059133337. The cubic root of 7669819542 is about 1972.0974972951.

The spelling of 7669819542 in words is "seven billion, six hundred sixty-nine million, eight hundred nineteen thousand, five hundred forty-two".