19487460734 has 12 divisors (see below), whose sum is σ = 33407970984. Its totient is φ = 8351545032.

The previous prime is 19487460697. The next prime is 19487460779. The reversal of 19487460734 is 43706478491.

It is a super-2 number, since 2×19487460734² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503672 + ... + 540980.

It is an arithmetic number, because the mean of its divisors is an integer number (2783997582).

Almost surely, 2^19487460734 is an apocalyptic number.

19487460734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19487460734 is a deficient number, since it is larger than the sum of its proper divisors (13920510250).

19487460734 is an frugal number, since it uses more digits than its factorization.

19487460734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74627 (or 37318 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 19487460734 in words is "nineteen billion, four hundred eighty-seven million, four hundred sixty thousand, seven hundred thirty-four".