503642153861 has 8 divisors (see below), whose sum is σ = 627917490624. Its totient is φ = 392448431520.

The previous prime is 503642153857. The next prime is 503642153869. The reversal of 503642153861 is 168351246305.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 503642153861 - 2² = 503642153857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503642153869) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3270403520 + ... + 3270403673.

It is an arithmetic number, because the mean of its divisors is an integer number (78489686328).

Almost surely, 2^503642153861 is an apocalyptic number.

It is an amenable number.

503642153861 is a deficient number, since it is larger than the sum of its proper divisors (124275336763).

503642153861 is a wasteful number, since it uses less digits than its factorization.

503642153861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6540807211.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 503642153861 in words is "five hundred three billion, six hundred forty-two million, one hundred fifty-three thousand, eight hundred sixty-one".