51740000019 has 32 divisors (see below), whose sum is σ = 77181811200. Its totient is φ = 34255185120.

The previous prime is 51740000003. The next prime is 51740000033. The reversal of 51740000019 is 91000004715.

It is not a de Polignac number, because 51740000019 - 2⁴ = 51740000003 is a prime.

It is a super-2 number, since 2×51740000019² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51739999947 and 51740000001.

It is not an unprimeable number, because it can be changed into a prime (51740000519) 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, 6857389 + ... + 6864929.

It is an arithmetic number, because the mean of its divisors is an integer number (2411931600).

Almost surely, 2^51740000019 is an apocalyptic number.

51740000019 is a deficient number, since it is larger than the sum of its proper divisors (25441811181).

51740000019 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (51740000018) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (9266).

51740000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272 (or 9266 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The spelling of 51740000019 in words is "fifty-one billion, seven hundred forty million, nineteen", and thus it is an aban number.