9906715877 has 8 divisors (see below), whose sum is σ = 10056388896. Its totient is φ = 9757096272.

The previous prime is 9906715873. The next prime is 9906715891. The reversal of 9906715877 is 7785176099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9906715877 - 2² = 9906715873 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9906715873) 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, 518783 + ... + 537539.

It is an arithmetic number, because the mean of its divisors is an integer number (1257048612).

Almost surely, 2^9906715877 is an apocalyptic number.

It is an amenable number.

9906715877 is a deficient number, since it is larger than the sum of its proper divisors (149673019).

9906715877 is a wasteful number, since it uses less digits than its factorization.

9906715877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26707.

The product of its (nonzero) digits is 6667920, while the sum is 59.

The square root of 9906715877 is about 99532.4865408275. The cubic root of 9906715877 is about 2147.7145988975.

The spelling of 9906715877 in words is "nine billion, nine hundred six million, seven hundred fifteen thousand, eight hundred seventy-seven".