9719223870 has 16 divisors (see below), whose sum is σ = 23326137360. Its totient is φ = 2591793024.

The previous prime is 9719223863. The next prime is 9719223887. The reversal of 9719223870 is 783229179.

It is a Curzon number.

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, 161987035 + ... + 161987094.

It is an arithmetic number, because the mean of its divisors is an integer number (1457883585).

Almost surely, 2^9719223870 is an apocalyptic number.

9719223870 is an abundant number, since it is smaller than the sum of its proper divisors (13606913490).

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

9719223870 is a wasteful number, since it uses less digits than its factorization.

9719223870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323974139.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 9719223870 is about 98586.1241250512. The cubic root of 9719223870 is about 2134.0791784743.

The spelling of 9719223870 in words is "nine billion, seven hundred nineteen million, two hundred twenty-three thousand, eight hundred seventy".