7877797632 has 108 divisors (see below), whose sum is σ = 23909219880. Its totient is φ = 2487711744.

The previous prime is 7877797621. The next prime is 7877797633. The reversal of 7877797632 is 2367977787.

It is a self number, because there is not a number n which added to its sum of digits gives 7877797632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7877797633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46203 + ... + 133754.

Almost surely, 2^7877797632 is an apocalyptic number.

7877797632 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7877797632 is an abundant number, since it is smaller than the sum of its proper divisors (16031422248).

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

7877797632 is a wasteful number, since it uses less digits than its factorization.

7877797632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179998 (or 179981 counting only the distinct ones).

The product of its digits is 43563744, while the sum is 63.

The square root of 7877797632 is about 88756.9582173702. The cubic root of 7877797632 is about 1989.7641726214.

The spelling of 7877797632 in words is "seven billion, eight hundred seventy-seven million, seven hundred ninety-seven thousand, six hundred thirty-two".