53689791819 has 4 divisors (see below), whose sum is σ = 71586389096. Its totient is φ = 35793194544.

The previous prime is 53689791811. The next prime is 53689791829. The reversal of 53689791819 is 91819798635.

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

It is not a de Polignac number, because 53689791819 - 2³ = 53689791811 is a prime.

It is a super-2 number, since 2×53689791819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53689791819.

It is not an unprimeable number, because it can be changed into a prime (53689791811) 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, 8948298634 + ... + 8948298639.

It is an arithmetic number, because the mean of its divisors is an integer number (17896597274).

Almost surely, 2^53689791819 is an apocalyptic number.

53689791819 is a deficient number, since it is larger than the sum of its proper divisors (17896597277).

53689791819 is a wasteful number, since it uses less digits than its factorization.

53689791819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17896597276.

The product of its digits is 29393280, while the sum is 66.

The spelling of 53689791819 in words is "fifty-three billion, six hundred eighty-nine million, seven hundred ninety-one thousand, eight hundred nineteen".