19006630780 has 48 divisors (see below), whose sum is σ = 40193858880. Its totient is φ = 7549521408.

The previous prime is 19006630739. The next prime is 19006630837. The reversal of 19006630780 is 8703660091.

It is a super-2 number, since 2×19006630780² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678297 + ... + 1689583.

It is an arithmetic number, because the mean of its divisors is an integer number (837372060).

Almost surely, 2^19006630780 is an apocalyptic number.

19006630780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19006630780 is an abundant number, since it is smaller than the sum of its proper divisors (21187228100).

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

19006630780 is a wasteful number, since it uses less digits than its factorization.

19006630780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11878 (or 11876 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 19006630780 in words is "nineteen billion, six million, six hundred thirty thousand, seven hundred eighty".