19427708076 has 96 divisors (see below), whose sum is σ = 52811243520. Its totient is φ = 5444172864.

The previous prime is 19427708071. The next prime is 19427708081. The reversal of 19427708076 is 67080772491.

It is an interprime number because it is at equal distance from previous prime (19427708071) and next prime (19427708081).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19427708071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 959085 + ... + 979131.

It is an arithmetic number, because the mean of its divisors is an integer number (550117120).

Almost surely, 2^19427708076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19427708076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26405621760).

19427708076 is an abundant number, since it is smaller than the sum of its proper divisors (33383535444).

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

19427708076 is a wasteful number, since it uses less digits than its factorization.

19427708076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283 (or 20281 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 19427708076 in words is "nineteen billion, four hundred twenty-seven million, seven hundred eight thousand, seventy-six".