53758440719 has 4 divisors (see below), whose sum is σ = 55492584000. Its totient is φ = 52024297440.

The previous prime is 53758440709. The next prime is 53758440779. The reversal of 53758440719 is 91704485735.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53758440719 - 2¹² = 53758436623 is a prime.

It is a super-2 number, since 2×53758440719² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53758440709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867071594 + ... + 867071655.

It is an arithmetic number, because the mean of its divisors is an integer number (13873146000).

Almost surely, 2^53758440719 is an apocalyptic number.

53758440719 is a deficient number, since it is larger than the sum of its proper divisors (1734143281).

53758440719 is a wasteful number, since it uses less digits than its factorization.

53758440719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734143280.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 53758440719 in words is "fifty-three billion, seven hundred fifty-eight million, four hundred forty thousand, seven hundred nineteen".