7669951964864 has 252 divisors, whose sum is σ = 18994141998432. Its totient is φ = 3063094272000.

The previous prime is 7669951964837. The next prime is 7669951964911. The reversal of 7669951964864 is 4684691599667.

It is a super-2 number, since 2×7669951964864² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 91494809 + ... + 91578599.

Almost surely, 2^{7669951964864} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7669951964864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9497070999216).

7669951964864 is an abundant number, since it is smaller than the sum of its proper divisors (11324190033568).

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

7669951964864 is a wasteful number, since it uses less digits than its factorization.

7669951964864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83952 (or 83918 counting only the distinct ones).

The product of its digits is 4232632320, while the sum is 80.

The spelling of 7669951964864 in words is "seven trillion, six hundred sixty-nine billion, nine hundred fifty-one million, nine hundred sixty-four thousand, eight hundred sixty-four".