86780719620 has 144 divisors (see below), whose sum is σ = 300914560128. Its totient is φ = 19830666240.

The previous prime is 86780719591. The next prime is 86780719667. The reversal of 86780719620 is 2691708768.

86780719620 is a `hidden beast` number, since 8 + 6 + 7 + 8 + 0 + 7 + 1 + 9 + 620 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8160747 + ... + 8171373.

Almost surely, 2^86780719620 is an apocalyptic number.

It is an amenable number.

86780719620 is an abundant number, since it is smaller than the sum of its proper divisors (214133840508).

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

86780719620 is a wasteful number, since it uses less digits than its factorization.

86780719620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17130 (or 17125 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 86780719620 in words is "eighty-six billion, seven hundred eighty million, seven hundred nineteen thousand, six hundred twenty".