38776822664 has 32 divisors (see below), whose sum is σ = 75225634200. Its totient is φ = 18716866560.

The previous prime is 38776822661. The next prime is 38776822717. The reversal of 38776822664 is 46622867783.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 31078164100 + 7698658564 = 176290^2 + 87742^2 .

It is not an unprimeable number, because it can be changed into a prime (38776822661) 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, 2353784 + ... + 2370200.

Almost surely, 2^38776822664 is an apocalyptic number.

It is an amenable number.

38776822664 is a deficient number, since it is larger than the sum of its proper divisors (36448811536).

38776822664 is a wasteful number, since it uses less digits than its factorization.

38776822664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26633 (or 26629 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 59.

The spelling of 38776822664 in words is "thirty-eight billion, seven hundred seventy-six million, eight hundred twenty-two thousand, six hundred sixty-four".