19064811240 has 80 divisors (see below), whose sum is σ = 64078959780. Its totient is φ = 5083948800.

The previous prime is 19064811239. The next prime is 19064811263. The reversal of 19064811240 is 4211846091.

19064811240 is a `hidden beast` number, since 1 + 9 + 0 + 648 + 1 + 1 + 2 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17034948324 + 2029862916 = 130518^2 + 45054^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 19064811195 and 19064811204.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2938861 + ... + 2945340.

Almost surely, 2^19064811240 is an apocalyptic number.

19064811240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19064811240 is an abundant number, since it is smaller than the sum of its proper divisors (45014148540).

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

19064811240 is a wasteful number, since it uses less digits than its factorization.

19064811240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5884224 (or 5884211 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 19064811240 in words is "nineteen billion, sixty-four million, eight hundred eleven thousand, two hundred forty".