542215561451 has 4 divisors (see below), whose sum is σ = 570753222600. Its totient is φ = 513677900304.

The previous prime is 542215561441. The next prime is 542215561487. The reversal of 542215561451 is 154165512245.

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

It is a cyclic number.

It is not a de Polignac number, because 542215561451 - 2¹⁰ = 542215560427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542215561399 and 542215561408.

It is not an unprimeable number, because it can be changed into a prime (542215561441) 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, 14268830546 + ... + 14268830583.

It is an arithmetic number, because the mean of its divisors is an integer number (142688305650).

Almost surely, 2^542215561451 is an apocalyptic number.

542215561451 is a deficient number, since it is larger than the sum of its proper divisors (28537661149).

542215561451 is a wasteful number, since it uses less digits than its factorization.

542215561451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28537661148.

The product of its digits is 240000, while the sum is 41.

The spelling of 542215561451 in words is "five hundred forty-two billion, two hundred fifteen million, five hundred sixty-one thousand, four hundred fifty-one".