542613655651 has 4 divisors (see below), whose sum is σ = 542619349272. Its totient is φ = 542607962032.

The previous prime is 542613655603. The next prime is 542613655699. The reversal of 542613655651 is 156556316245.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (542613655603) and next prime (542613655699).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542613655651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542613655595 and 542613655604.

It is not an unprimeable number, because it can be changed into a prime (542613655601) 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, 2701381 + ... + 2895286.

It is an arithmetic number, because the mean of its divisors is an integer number (135654837318).

Almost surely, 2^542613655651 is an apocalyptic number.

542613655651 is a deficient number, since it is larger than the sum of its proper divisors (5693621).

542613655651 is an equidigital number, since it uses as much as digits as its factorization.

542613655651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5693620.

The product of its digits is 3240000, while the sum is 49.

The spelling of 542613655651 in words is "five hundred forty-two billion, six hundred thirteen million, six hundred fifty-five thousand, six hundred fifty-one".