9777863742 has 16 divisors (see below), whose sum is σ = 19560577680. Its totient is φ = 3258479552.

The previous prime is 9777863717. The next prime is 9777863773. The reversal of 9777863742 is 2473687779.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175617 + ... + 224492.

It is an arithmetic number, because the mean of its divisors is an integer number (1222536105).

Almost surely, 2^9777863742 is an apocalyptic number.

9777863742 is an abundant number, since it is smaller than the sum of its proper divisors (9782713938).

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

9777863742 is a wasteful number, since it uses less digits than its factorization.

9777863742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404187.

The product of its digits is 24893568, while the sum is 60.

The square root of 9777863742 is about 98883.0811716544. The cubic root of 9777863742 is about 2138.3624866424.

The spelling of 9777863742 in words is "nine billion, seven hundred seventy-seven million, eight hundred sixty-three thousand, seven hundred forty-two".