53540744386 has 4 divisors (see below), whose sum is σ = 80311116582. Its totient is φ = 26770372192.

The previous prime is 53540744371. The next prime is 53540744393. The reversal of 53540744386 is 68344704535.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68344704535 = 5 ⋅13668940907.

It can be written as a sum of positive squares in only one way, i.e., 45852085161 + 7688659225 = 214131^2 + 87685^2 .

It is a super-2 number, since 2×53540744386² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13385186095 + ... + 13385186098.

Almost surely, 2^53540744386 is an apocalyptic number.

53540744386 is a deficient number, since it is larger than the sum of its proper divisors (26770372196).

53540744386 is a wasteful number, since it uses less digits than its factorization.

53540744386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26770372195.

The product of its (nonzero) digits is 4838400, while the sum is 49.

The spelling of 53540744386 in words is "fifty-three billion, five hundred forty million, seven hundred forty-four thousand, three hundred eighty-six".