53918492487 has 8 divisors (see below), whose sum is σ = 72199870704. Its totient is φ = 35791387968.

The previous prime is 53918492483. The next prime is 53918492497. The reversal of 53918492487 is 78429481935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53918492487 - 2² = 53918492483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53918492487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53918492483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38567608 + ... + 38569005.

It is an arithmetic number, because the mean of its divisors is an integer number (9024983838).

Almost surely, 2^53918492487 is an apocalyptic number.

53918492487 is a deficient number, since it is larger than the sum of its proper divisors (18281378217).

53918492487 is a wasteful number, since it uses less digits than its factorization.

53918492487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77136849.

The product of its digits is 17418240, while the sum is 60.

The spelling of 53918492487 in words is "fifty-three billion, nine hundred eighteen million, four hundred ninety-two thousand, four hundred eighty-seven".