53542921491 has 12 divisors (see below), whose sum is σ = 77359908600. Its totient is φ = 35685988800.

The previous prime is 53542921477. The next prime is 53542921499. The reversal of 53542921491 is 19412924535.

It is a happy number.

53542921491 is a `hidden beast` number, since 5 + 3 + 5 + 429 + 214 + 9 + 1 = 666.

It is not a de Polignac number, because 53542921491 - 2¹⁴ = 53542905107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53542921499) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 737766 + ... + 807083.

It is an arithmetic number, because the mean of its divisors is an integer number (6446659050).

Almost surely, 2^53542921491 is an apocalyptic number.

53542921491 is a deficient number, since it is larger than the sum of its proper divisors (23816987109).

53542921491 is a wasteful number, since it uses less digits than its factorization.

53542921491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548706 (or 1548703 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The spelling of 53542921491 in words is "fifty-three billion, five hundred forty-two million, nine hundred twenty-one thousand, four hundred ninety-one".